DO THE TON

Blood Sweat Tears and Grease => Projects => Trackers => Topic started by: 45exmayor on Jun 13, 2015, 19:13:34

Title: '71 CB100/125 (the un scooter)
Post by: 45exmayor on Jun 13, 2015, 19:13:34
Last year as I was approaching 70 I was no longer able to take the longer rides on my Monster that I so enjoyed (am developing some arthritis in both hands) so I decided to sell the Duc and build something for errands and short rides on the back roads.  I found this on local CL

A non runner with a clear title and the 100 and a complete SL 125 motor.  Spent the fall disassembling the 125 and found a failed bronze bush in the idler gear.  Cleaned everything well bagged and labeled things and made lists of what needed to be ordered.  The goal is to end up with a bike that looks nice and is fun.

We leave Wisconsin for the winter and when we returned we realized the house had been burglarized and among the things taken were the bikes wheels. They had been redone but the po so I was really pissed.  I found replacements on eBay took them apart and took them to my media blaster, ordered alloy rims new tires and a friend is in the process of building them now.
The same guy did a rear hoop. New electronic box and seat base. The seat will be something like this tank and fenders will be Mini Cooper pepper white and the frame will be satin black.
Most of the parts for the rebuild have arrived.  It will be bored 50 over with new valves in the head.  I'll start the bottom end assembly next week.



Title: Re: '71 CB100/125 (the un scooter)
Post by: trek97 on Jun 13, 2015, 19:22:34
Welcome to DTT !

Stinks to hear about the robbery.  Sounds like your back on track now.  Keep the pics coming!

Gotcha "bookmarked"
Title: Re: '71 CB100/125 (the un scooter)
Post by: 45exmayor on Jun 13, 2015, 19:28:47
 This weekends project is to sort out the wiring.  I tore the old harness out and started over.  Got a rectifier regulator from SparckMoto.  Picked up some small turn indicators that use ba9 bulbs and changed them to 6v led's from super bright.  Did the same conversion on the tail light from Dime City.  Changed all,the lights in the speedo to led except the turn indicator light.  The flasher didn't work with all led's but with the stock ba9 there was a enough currant draw to fire it off. 
Pam using all stainless Allen bolts from bolt depot great selection and fair prices (be sure to make complete lists since the freight can be as much as the order)

After a couple of trial and error attempts I decided on some Renthal ultra low superbike bars cut down to 26 in.
Title: Re: '71 CB100/125 (the un scooter)
Post by: surplus 6 on Jun 13, 2015, 19:44:55
http://hondacg125.awardspace.com/how_to_increase_engine_size.htm
http://www.kaila.net/tl125/tl125bigbore.html
just in case you run outta ideas
Title: Re: '71 CB100/125 (the un scooter)
Post by: 45exmayor on Jun 13, 2015, 20:55:11
this is what the 125 looked like when I opened it up.  It was surprisingly clean inside. no sludge or shavings. 
Title: Re: '71 CB100/125 (the un scooter)
Post by: WhyNot on Jun 13, 2015, 23:55:19
wow.....following.............
Title: Re: '71 CB100/125 (the un scooter)
Post by: 45exmayor on Jun 14, 2015, 18:10:24
Found a running '76 cb125s motor on CL this morning.  Owner took it out to convert frame to an electric bike.  seems real solid.
Also got these two tanks that are available.  both are amazingly clean inside.  red one has a couple of small dents in top.
Title: Re: '71 CB100/125 (the un scooter)
Post by: trek97 on Jun 14, 2015, 19:19:43
Holy cow bud, I would like to bolt a 125 into the 100 Im workin on now.

Thats cool.
Title: Re: '71 CB100/125 (the un scooter)
Post by: WhyNot on Jun 14, 2015, 20:46:57
Holy cow bud, I would like to bolt a 125 into the 100 Im workin on now.

Thats cool.



You and me both...........hell, I'd just like to hear the one I have run once.
Title: Re: '71 CB100/125 (the un scooter)
Post by: JB77 on Jun 14, 2015, 21:30:29
I'd be game for that. Maybe a winter project.
Title: Re: '71 CB100/125 (the un scooter)
Post by: 45exmayor on Jun 16, 2015, 19:27:23
Pulled the old 100 out of the frame and put the new 125 in so I could drop the oil.  Pulled both side covers to check inside. The alternator side was amazingly clean and the clutch side had very little material in it.  Pulled the oil filter apart, gave it a good cleaning and a new gasket and closed it up.  The covers will go to the parts blaster then get painted.  Took the time to fit all of the stainless Allen screws into both sides, now just need to change the case bolts.  The clutch looks to be in really good shape so I will leave it alone for now.
I got the wiring harness with the new motor so I will cut it apart and have all the material I need for the rewire.
Found a guy that can upholster the seat so the pan will go off to him tomorrow.  Found a couple of ideas I like. The shape of the black one but with the rolled top of the brown one and finished in brown. 
Title: Re: '71 CB100/125 (the un scooter)
Post by: 45exmayor on Jun 18, 2015, 15:37:06
Found some foot pegs in the bottom of the toolbox that were spares from a pair of rear sets I ran on the monster for a while then sold on.  Went over to my friends house and we cut the step bar where the old rubber peg covers ended.  Taped in allen bolts to use as mounting studs and he welded them in.  All that is needed now are some thin jamb nuts to keep them from turning on the studs.
Got all of the old case Phillips screws out (some were really corroded in place.). Coated the new stainless Allen screws with anti seize and torqued them in.

I had new seals on the shelf so changed the ones for the front sprocket and shifter.  Will put the new one for the kick start shaft in after the right side cover is soda blasted
Title: Re: '71 CB100/125 (the un scooter)
Post by: travisvisual on Jun 25, 2015, 21:16:44
Man, im excited to see how you finish up! Im working on my lil CB100 right now. Hopefully finishing my front end swap this weekend. I have been chipping away little by little. Got it registered, got it fired up and now its time for the fun and taking the bike apart. Good luck! I will be following!
Title: Re: '71 CB100/125 (the un scooter)
Post by: WhyNot on Jun 25, 2015, 21:53:50
Man, im excited to see how you finish up! Im working on my lil CB100 right now. Hopefully finishing my front end swap this weekend. I have been chipping away little by little. Got it registered, got it fired up and now its time for the fun and taking the bike apart. Good luck! I will be following!

Do you have a build thread? Or, at least, pictures?
Title: Re: '71 CB100/125 (the un scooter)
Post by: 45exmayor on Jun 26, 2015, 08:55:58
Another batch of parts off to the parts blaster.  When they are all painted the frame is the last thing to go.  I am hoping to start assembly in two weeks.
Title: Re: '71 CB100/125 (the un scooter)
Post by: travisvisual on Jun 26, 2015, 17:36:49
Do you have a build thread? Or, at least, pictures?

No not yet, I have photos though. Maybe I will start one. Its going to be a longer process, just taking my time with it.
Title: Re: '71 CB100/125 (the un scooter)
Post by: 45exmayor on Jun 27, 2015, 19:16:35
Good day here after some wet ones so I was able to get some of the covers for the motor painted.  Also found a good source for metric seals on ebay (link) http://stores.ebay.com/Ultimate-Industrial-Solutions/Seals-and-O-rings-/_i.html?_fsub=9951969018&_sid=715393798&_trksid=p4634.c0.m322
I needed the seal for the points housing it was here in 4 days. 
Title: Re: '71 CB100/125 (the un scooter)
Post by: WhyNot on Jun 28, 2015, 08:50:29
Found a running '76 cb125s motor on CL this morning.  Owner took it out to convert frame to an electric bike.  seems real solid.
Also got these two tanks that are available.  both are amazingly clean inside.  red one has a couple of small dents in top.

Do you still have these two tanks?

Will they fit a CB100 frame?

How much you looking to get?

+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++

Good looking paint job too.

I may tear mine back down and paint it some day. Right now, just want get it running first.
Title: Re: '71 CB100/125 (the un scooter)
Post by: 45exmayor on Jun 28, 2015, 11:49:49
I sold them both to a local guy with several projects
Title: Re: '71 CB100/125 (the un scooter)
Post by: WhyNot on Jun 28, 2015, 23:06:09
Figures............day late..........dollar short.
Title: Re: '71 CB100/125 (the un scooter)
Post by: 45exmayor on Jul 01, 2015, 16:02:30
all the parts are back from the blaster.  now to get them primed and painted and the assembly can begin.
here is a link to a site I have found very helpful http://www.cmsnl.com/honda-cb100-super-sport-k0-1970-usa_model407/partslist/  I am a visual guy and use their parts explosions along with the downloaded factory manual.  I have had to get some parts from them, pricy and high shipping but they were the only place i gould find a nos trans idler gear and nos valves for my 122 cc motor that came with the bike.  I have decided to finish the rebuild on it and keep it as a spare.  I also have the 100 and it is all broken down.  if you need any of those parts let me know.
Title: Re: '71 CB100/125 (the un scooter)
Post by: 45exmayor on Jul 01, 2015, 20:18:53
Got to painting today. Finished the motor covers, pe
Pressed in new seals and buttoned it up.  Just need to install the points and advance mechanism when the new stainless Allen heads arrive. I have used alleys for the points screws before and I really simplifies changing points since the screws don't strip and they stay on the Allen key for easy installation.
Also primed the fenders and got the vht satin chassis/roll bar paint on the lower triple tree, the front motor mount and the tail light.
Title: Re: '71 CB100/125 (the un scooter)
Post by: trek97 on Jul 01, 2015, 22:41:18
Lookin great. 

and I just swapped my points adj screws to stainless allen heads this morning.

Great minds must think alike!
Title: Re: '71 CB100/125 (the un scooter)
Post by: 45exmayor on Jul 02, 2015, 20:41:21
Got,some more thing painted.  3 coats of chassis/rollbar satin.  Once it dries it seems really durable.  I did the rear brake lever except the foot pad.  I have noticed on many do these small Honda builds that the chrome lever kind of overtakes the right side of the bike. The dime city tail light was shiny powder coat and just didn't look rite.   While I was dealing with it I crimped on new Honda style connectors and replaced the Phillips screws with stainless allens and self locking nuts. I tend to get carried away with small details most people never notice.
Title: Re: '71 CB100/125 (the un scooter)
Post by: 45exmayor on Jul 03, 2015, 18:26:43
Almost at the end of frame painting.  A couple more coats and then it needs to sit for 48 hours.  I have a little grunge to clean off of the bottom of the motor then after setting the valves and points it's ready to go in to the frame. 
Title: Re: '71 CB100/125 (the un scooter)
Post by: WhyNot on Jul 03, 2015, 18:30:07
^^^^^^^^^^....whoa, seeing that frame hanging brings back memories....^^^^^^^^^^^^^^^^^^^^^^

Cool, you'll have her back up and running in no time.
Title: Re: '71 CB100/125 (the un scooter)
Post by: trek97 on Jul 03, 2015, 19:02:53
Ha, yes, I can remember as far back as those days!   ;)
Title: Re: '71 CB100/125 (the un scooter)
Post by: JB77 on Jul 03, 2015, 20:29:12
Is that tailight 6 volt?
Title: Re: '71 CB100/125 (the un scooter)
Post by: 45exmayor on Jul 04, 2015, 07:54:42
 It is now.  Got a 6v led 1157 replacement from super bright leds. Also got the 6v leds for the indicator conversion and gauge bulbs from them.  It works great.
Title: Re: '71 CB100/125 (the un scooter)
Post by: WhyNot on Jul 04, 2015, 07:59:33
It is now.  Got a 6v led 1157 replacement from super bright leds. Also got the 6v leds for the indicator conversion and gauge bulbs from them.  It works great.


Can you post a link?

Thanks.
Title: Re: '71 CB100/125 (the un scooter)
Post by: 45exmayor on Jul 04, 2015, 09:19:04
Here you go  https://www.superbrightleds.com/search/led-vehicle-replacement-bulbs/6%20volt/
Title: Re: '71 CB100/125 (the un scooter)
Post by: WhyNot on Jul 04, 2015, 10:08:58
Here you go  https://www.superbrightleds.com/search/led-vehicle-replacement-bulbs/6%20volt/


cool thanks
Title: Re: '71 CB100/125 (the un scooter)
Post by: JB77 on Jul 04, 2015, 15:40:38
Cool thanks. I've been searching for a 6 volt tail like that. I'll go your route when the time comes.
Title: Re: '71 CB100/125 (the un scooter)
Post by: 45exmayor on Jul 05, 2015, 18:49:08
Made some good progress on the frame today.  Pressed in the races for the tapered steering bearings using a threaded rod with big washers.  Got them in strait and most of the way.  Finished setting them with a large socket upside down, a short extension and a dead blow hammer.  Next was the new swing arm bushings.  Put a C clamp in the workmate and used a deep socket with an extension for leverage.  That got them most of the way in.  Finished them up with the swing arm bolt with large washers on each side.  Seems really good, no side play then installed in the frame.
Next week I will set the motor in th frame.  Going to try a new idea.  Last time I had the frame on the pit bull standard and lifted the motor with a small floor jack.  It was a pain.  This time, I will set the motor on an upside down milk crate and lower th frame over it by letting down the straps it is hanging from the floor joists with.  That should give more wiggle room getting the 2 rear bolts in and eliminate the risk of the motor slipping and falling off of th jack.  More later on how it worked out.  The seat pan is at the upholsterers and should be back this week.  Need to get my friend going on the wheels and finish up the wiring. At this point in the project I am really glad I spent the extra time bagging and labeling when I tore it apart.  It appears I haven't lost or thrown out anything YET!
Title: Re: '71 CB100/125 (the un scooter)
Post by: trek97 on Jul 07, 2015, 08:29:19
I did the same.  Assembled frame/forks/wheels.  Laid engine down on rags then placed frame over engine. 

Let the "electric white tail deer skinner" do all the heavy lifting.  ;)
Title: Re: '71 CB100/125 (the un scooter)
Post by: 45exmayor on Jul 07, 2015, 19:04:56
Got the valves and points set and the motor installed back in the frame.  The milk crate trick didn't work (not enough room to fit the bottom rear bolt) so I followed trek's lead and set the motor on the floor.  Also covered the front motor mount tube with three layers of painters tape to keep,from scratching it.  A little alignment with a punch and lol the bolts slipped in.  The po had braised the huge '76 muffler to the head pipe so I need to get the brazing off and clean the end of the pipe before I can fit a cone engineering quite muffler.  I have read all of the builds saying that I need to run a stock air box and pipe.  But I don't have the stock box, the '76 box I got with the motor won't fit my frame and I have always had a tendency to try different things since I was a kid building drag cars in SoCal in the '60's.  And since I have lots of time I will work to sort it out. First I will put an extension on the carb to create a velocity and if I am not satisfied with that I will try an oval k&n that has more volume.
Included a pic of the "tool" I used to install the steering races in the head tube.
Title: Re: '71 CB100/125 (the un scooter)
Post by: WhyNot on Jul 07, 2015, 19:32:09
^^^^^^dayyyyyum dude^^^^^^^^^^^^

You, trek, and jb are putting me to shame on my little CB100.

Oh well.................Looks good...you'll have her up and running, riding in no time.
Title: Re: '71 CB100/125 (the un scooter)
Post by: JB77 on Jul 07, 2015, 21:41:28
I was thinking about extending the carb inlet the last two days. What type of material you looking to try. I was thinking of trying to find a radiator hose with the same diameter as the carb and working from there.
Title: Re: '71 CB100/125 (the un scooter)
Post by: trek97 on Jul 07, 2015, 21:56:14
Now I dont know nothing about the mechanically operated slides.  But, I am willing to bet you wont have too much trouble jetting and adjusting needle to get her to run decent.  Since you are physically in control of both slide lift (air flow) & needle position (fuel metering).  Unless of course...tweaking comes down to a needle taper issue.

Vacuum operated slides like the 360 is what gives the fits.  Its all about atmospheric pressures and stuff like that.  When things breathe easier the slides lift too early dumping fuel in before rpms have built enough for consumption...I believe.   ;)

BTW.  My 100 is bone stock intake and exhaust...and staying that way.
Title: Re: '71 CB100/125 (the un scooter)
Post by: 45exmayor on Jul 07, 2015, 22:30:16
JB
I was thinking of trying to find some thin wall aluminum tubing and clamp it over the carb and slide the filter over that.  I think a 3 to 31/2 inch extension will create a velocity stack that should smooth the air flow.
Title: Re: '71 CB100/125 (the un scooter)
Post by: JB77 on Jul 07, 2015, 22:32:25
Cool, that's a good call.
Title: Re: '71 CB100/125 (the un scooter)
Post by: 45exmayor on Jul 09, 2015, 19:55:24
Learned a lesson today.  If you take one of these bikes completely apart, don't put the swingarm back on before you hook up the brake lever and center stand springs.  The brake spring went on with a spring puller but the center stand was a little trickier.  Finally got it by sitting on the floor behind the bike and using a long thin screwdriver and first putting the spring on the bracket, levering over the tab on the stand.
Getting closer to having a finished project.  Need the seat back from the upholstery guy and my wheels back from the builder.  And get the exhaust sorted out. I'll get on the wiring over the weekend when it is raining. 
Title: Re: '71 CB100/125 (the un scooter)
Post by: Rimmy on Jul 10, 2015, 11:09:15
Damn! That looks great!
Title: Re: '71 CB100/125 (the un scooter)
Post by: 45exmayor on Jul 10, 2015, 14:21:21
Just got a pic of the partially completed seat from my upholstery guy.  Can't wait to fit it to the bike
Title: Re: '71 CB100/125 (the un scooter)
Post by: JB77 on Jul 10, 2015, 15:14:06
Nice.
Title: Re: '71 CB100/125 (the un scooter)
Post by: 45exmayor on Jul 12, 2015, 19:22:35
I think I found the solution for extending the air filter length.  Found a 90 degree 1 in silicone radiator hose online for $20.  It is 12 in long and can be trimmed to place the filter under the battery box close to the position of the stock filter box. It should place the filter in a quiet air area so we'll see how it works
Title: Re: '71 CB100/125 (the un scooter)
Post by: travisvisual on Jul 13, 2015, 16:45:33

Did you just use a rattle can to paint the frame and all other parts?
Title: Re: '71 CB100/125 (the un scooter)
Post by: 45exmayor on Jul 13, 2015, 18:53:55
Yes.  Just used vht satin rollbar and chassis paint.  I did three fog coats and two wet coats. I let it cure three days before I tried to work on it.  The whole project took 4 cans.  Had the frame walnut shell blasted which left a slightly rough finish and painted over that with no priming.  That is what the can instructions call for.  It appears to be very durable and since this is not going to get heavy use, it should be fine.
Title: Re: '71 CB100/125 (the un scooter)
Post by: 45exmayor on Jul 13, 2015, 18:58:17
Just got the seat back from the upholsterer.  I am really happy with the results.  He used boat padding so it is really firm.  Sat on it on the stands for about 10 min and the height seems just right I am 5'7".
Title: Re: '71 CB100/125 (the un scooter)
Post by: 45exmayor on Jul 13, 2015, 19:15:17
Wiring begins tomorrow.  The bar switch is a pattern British repro.  It will be used for indicators and horn.  There are 2 grounded buttons.  I would like to use the one on top as a kill button.  Anyone have experience with doing this.  The lights will be controlled with the switch in the battery box.  It switched all off.  Low head and tail.  High head and tail.  They work great.  I had the same switch on my 67 Triumph 500.  The biggest deal is checking all the lugs at each switch position with an ohm meter.  It is not obvious from looking at the lugs.
Title: Re: '71 CB100/125 (the un scooter)
Post by: JB77 on Jul 13, 2015, 20:03:55
Looking good man. Can't wait to see how the air filter set up works for you.
Title: Re: '71 CB100/125 (the un scooter)
Post by: 45exmayor on Jul 14, 2015, 13:38:53
I emailed Matthew at Sparck Moto and he helped me thru the kill button question.  It needs a relay in the circuit.  If any of you need to do this pm me and I will forward the instructions and a link to the relay.
Title: Re: '71 CB100/125 (the un scooter)
Post by: travisvisual on Jul 14, 2015, 15:13:51

Did you already re jet your carb for the air filter? I really want to do the same but I have read that a lot of people were having issues with pod's on these engines.
Title: Re: '71 CB100/125 (the un scooter)
Post by: 45exmayor on Jul 14, 2015, 18:30:53
Not yet.  I need my wheels back from the builder so I can roll it out of the basement.  It was a non runner when I bought and the 100 and 125 were both in crates.  I have since found a running 125 from a '76 that is 14hp and has the two piece head with bigger valves and a 24 mm carb as standard.  I lowered the needle clip one notch and will have to sort it out from there.  Extending the inlet tube should minimize some of the problems.
Title: Re: '71 CB100/125 (the un scooter)
Post by: 45exmayor on Jul 17, 2015, 19:11:04
Got a good start on the wiring today.  Main and light switches wired new fuse block and only have the final runs to the indicators and ignition then I can cut all the runs to length and get it all bundled neatly.
We're really isn't much room between the frame and the fender but it should cut in the box. I mounted the SparckMoto r/r under the electronics box and used I'd grommets between it and the box to dampen vibration.  That location gives it good air flow and keeps,it much cooler.  I did the same mod to my old monster and never had any problems.  Monsters come with the regulator buried under the seat and they are prone to heat failure.
Title: Re: '71 CB100/125 (the un scooter)
Post by: trek97 on Jul 18, 2015, 06:30:09
Are you telling me that 76 125 is a stock 12v system?
Title: Re: '71 CB100/125 (the un scooter)
Post by: 45exmayor on Jul 18, 2015, 07:27:58
Trek

Then76 is 6V.  SparckMoto had some 6V  r/r s that were reasonable.  The 7V anti gravity battery however was a big purchase.  With no running bike I can focus all of my obsiveness on this.  At the start I made a decision not to buy a Grom or a scooter so I am enjoying trying things on this that I wouldn't do if I were in a rush to,get it going.
Title: Re: '71 CB100/125 (the un scooter)
Post by: 45exmayor on Jul 28, 2015, 19:40:41
Finally finished the wiring and everything works as planned with one small exception.  When the indicators are on, both the indicator and the high beam lights in the speedo flash. Started when I connected the high beam indicator. It is really a minor issue but I will take the speedo off and get it sorted.
The relay that Matthew at SparckMoto helped me sort out clicks so the kill button should work.
Finally got the clutch cable measured up and an order off to motion pro.  The 100 cable is too short for the new 125 and the one I got with the 125 is too long.  Unlike the 100 & 122cc 125's which use a stop on the frame the 124cc uses a stop on the motor and pulls toward the front of the bike instead of towards the top.  Also ready to order a cone engineering quite core reverse cone.  The head pipe on the 125 is 1 od so it should work fine.
Refilled the forks with oil and put oil in motor and kicked it thru without the plug about 20 times to prime the pump.
Now I just need the wheels so I can roll it out of the basement fuel it up and hear it run.
Title: Re: '71 CB100/125 (the un scooter)
Post by: trek97 on Jul 28, 2015, 20:13:59
Super Nice, kinda weird about the flashing high beam light.
You can get those fork springs chromed for $65-$70.   8)
A little spendy but It really is the icing on the cake.


Title: Re: '71 CB100/125 (the un scooter)
Post by: 45exmayor on Jul 28, 2015, 20:29:49
Trek,  I'll probably get them chromed next spring when I get the paint done.  I bought this project in July of '14 and am anxious to get it on the road before we leave Wisconsin for the winter in late October.  We have finally begun to finish the lower level of out house,that we did a total gut remodel on 3 years ago.  So I work on that in the morning and fiddle with the bike in the afternoon. 
Title: Re: '71 CB100/125 (the un scooter)
Post by: trek97 on Jul 28, 2015, 20:37:41
I understand...the chrome shop I use takes a minimum 6 weeks.

Just reading and thinking...Youre build is way too nice not to go all the way w the BLING!
Title: Re: '71 CB100/125 (the un scooter)
Post by: 45exmayor on Jul 30, 2015, 17:31:36
Got the indicator light issue sorted.  I had grouped the ground for the gauge,high beam and thru indicator into a single wire.  When I plugged things together I had switched two wires.  Took a closer look and saw the problem
Title: Re: '71 CB100/125 (the un scooter)
Post by: 45exmayor on Aug 01, 2015, 20:07:14
For any of you who want to use a kill button with a modified working loom, here is the item I used

http://www.newark.com/te-connectivity-potter-brumfield/1432873-1/automotive-relay-spdt-6vdc-40a/dp/21M4888


Call Newark,and talk with them, their online system is cumbersome but their service and shipping is great.

I got the pin out from Matthew at SparkMoto
Title: Re: '71 CB100/125 (the un scooter)
Post by: Jonny_C on Aug 01, 2015, 22:46:45
I like the build!  The relay is just so that you can use a smaller switch as a kill switch and it doesn't have to handle the power that goes to the coils?

Where in WI are you located?  Don't worry, I won't rob your place again ;)  Sorry to hear about that.
Title: Re: '71 CB100/125 (the un scooter)
Post by: grcamna5 on Aug 01, 2015, 23:47:30
subscribed. Did you get your wheels back ?
Title: Re: '71 CB100/125 (the un scooter)
Post by: 45exmayor on Aug 02, 2015, 08:52:11
We are in Madison.  Didn't recover the original wheels.  Waiting on my friend to finish up building new ones with glass beaded hubs with new bearings and brake pads, stainless spokes and 18x WM0 alloy rims
Title: Re: '71 CB100/125 (the un scooter)
Post by: trek97 on Aug 02, 2015, 09:20:19
I used the same relay setup on my 360.  The system works really well and minimizes excess connections between battery and coils (only a fuse, relay plug and relay contacts).  So, your getting the cleanest, most consistent power to coil.  Another bonus, if your relay ever fails.  You can pick up a replacement at any auto parts store for $5.

I will probably incorporate the relay system once I convert the 100 to 12 volt.  Getting parts collected (350 stator) now.  My sparckmoto R/R is in the mail, just need to pick up the 2.2ohm resistor to add to the coil.  Bonus all the leds Ive already installed can use 12vdc.  8)

W the 125 no need for this.  But, I also installed a Heavy duty, 20amp, dpst, spring loaded toggle from Mcmaster as my starter switch.  That way it kills the power to the lighting system, free-ing up all battery power to the starter selonoid/ starter when I press it, then it snaps back to power up the lights, once the bike is running.
Title: Re: '71 CB100/125 (the un scooter)
Post by: 45exmayor on Aug 02, 2015, 09:54:09
Trek
When I wired the bike I used this. http://www.cycleterminal.com/mp280-fuse-box.html
And used one circuit for power from R/R - battery to switch.  Then came off of the switch and powered the other two fuses.  One is for the lights the other powers everything else.
All is 6volt
The bar switch controls indicators horn and kill button.
Title: Re: '71 CB100/125 (the un scooter)
Post by: trek97 on Aug 02, 2015, 11:15:45
That is truly a sweet setup you have built.  A guy smart enough to pay attention to what your doing can really learn a lot.

Im really liking the little fuse holder, and the bar control.  I may end up following your lead.  But the electrical on my 100 is gonna be a winter project.  So, gives me plenty of time to ponder things.

Considering a 100 mile ride today on the 360.  That will test out the new LED headlamp I installed in the 360 last week.  Too bad matt hasnt come up w an equivalent 6v.  For the 100 Im gonna try the same snowmobile LED as Im using for the running/signals & brake.  Its only 3 watts, but insanity bright.  Currently been experimenting w different diffuser/reflector setups to find the best for daytime use.  Thing would be annoying to oncoming traffic at high noon.  And flat out dangerous in the evenings.  But the wife will NEVER ride in the dark anyways.  In the event of emergency I will have to ride home and get trailer to haul her home.  So, will plan jaunts accordingly.  til I come up w a better system and a decent LED alternative.

If worse comes to worse, after the 12v upgrade. I will run an 18/18w halogen in the 100.  Its half assed decent enough to get you home after dark in a pinch, yet consuming minimal juice.

Matts 12 LED headlamp only uses 20w both low and high beams.  And its freakin bright too, but, completely different setup, employs reflector.  So not like the snowmobile lamp its a straight out shot, and the pinpoint is wicked. 
Title: Re: '71 CB100/125 (the un scooter)
Post by: 45exmayor on Aug 02, 2015, 13:40:46
I have 6V led's from superbrite everywhere and just got a replacement stock headlight bulb from DCC. Came in a Honda box and the difference between it and the original '71 are amazing.  The old reflector looks amber in comparison
Title: Re: '71 CB100/125 (the un scooter)
Post by: 45exmayor on Aug 06, 2015, 19:50:28
Muffler and mirrors are here. Stainless spokes ordered wheels should be about 2 weeks then roll it out of the lower level where it has lived for a year and final tune and ride! It is going to have a real air filter.
Title: Re: '71 CB100/125 (the un scooter) Tire Mounting Question
Post by: 45exmayor on Aug 13, 2015, 14:37:33
I am using a pair of IRC NR53's and they appear to be directional.  There is an arrow on the sidewall that I think should face forward at both front and rear.  Let me know if that is correct or not.  Thanks
Title: Re: '71 CB100/125 (the un scooter)
Post by: coyote13 on Aug 13, 2015, 16:01:33
Correct, arrow goes forward.  Sweet bike btw
Title: Re: '71 CB100/125 (the un scooter)
Post by: 45exmayor on Aug 13, 2015, 19:19:37
Thanks coyote. That was what I thought just needed confirmation

trek. Matt at SparckMoto had a few 6v 20w led headlights.  He said they were hit and miss on performance.  I took the gamble and have it just about ready to install.  Will add pics when it is up and going
Title: Re: '71 CB100/125 (the un scooter)
Post by: grcamna5 on Aug 14, 2015, 08:07:54
Thanks coyote. That was what I thought just needed confirmation

trek. Matt at SparckMoto had a few 6v 20w led headlights.  He said they were hit and miss on performance.  I took the gamble and have it just about ready to install.  Will add pics when it is up and going

Let us know how that 20w headlight works;I have a CB125 that needs a headlight and would like more light out of my 6vt. system too.
Title: Re: '71 CB100/125 (the un scooter)
Post by: trek97 on Aug 14, 2015, 21:11:52
cool, Im interested.
Title: Re: '71 CB100/125 (the un scooter)
Post by: travisvisual on Aug 17, 2015, 13:44:07

Looking so good! Where did you get the exhaust baffle from? How is it mounted? My bike came with the stock exhaust but it didn't have the mounting bracket, been trying to figure that one out.
Title: Re: '71 CB100/125 (the un scooter)
Post by: 45exmayor on Aug 17, 2015, 14:22:56
The muffler is a quite core from cone engineering http://www.coneeng.com/pdf/motorcycle/MC-finished-Mufflers.pdf
1 id.  I talked with them on the phone and they suggested a bracket that will weld on the frame side of the cone and use one spring to hold it.  I have ordered some Wurth exhaust assembly paste for,the joint so it won't leak.  I will get it to the welder this week
I am sure I a sure there are much less expensive solutions but since this "low cost" bike has taken on a life of it's own immightnas well just finish it the way I want .  The initial goal,was to be less than a new $2,000scooter now the target is less than a Grom.  If I pass that, then it needs to be less than a new monster.  There is a lot f room on the up side.
Title: Re: '71 CB100/125 (the un scooter)
Post by: rupaulpierce on Aug 17, 2015, 15:43:05
Curious about this kill switch relay problem. Is this why the kill on my DCC all in one switch doesn't work?
Title: Re: '71 CB100/125 (the un scooter)
Post by: 45exmayor on Aug 17, 2015, 16:53:37
When I had the email conversation with Matthew at SparckMoto, it was clear to me that the only way to make a kill button work was with a relay since you need to remove the power to the coil not just ground it out.  If your kill switch has two leads you will need to wire it so that the power for the coil comes in one side and the other side runs to the power wire of the coil.  If is just a grounded bottom like the horn, you need the relay to brake the circuit. 
Title: Re: '71 CB100/125 (the un scooter)
Post by: trek97 on Aug 17, 2015, 20:15:24
Heres how I did the 360 and plan to do the 100.

switched power from key switch to the kill switch

kill switch to the relay coil.

other side of relay coil to ground.

When both the key and kill are in run postion the relay picks and makes up the N/O contacts. 

That way the key switch kills the bike AND/OR The kill switch kills the bike.  Series'd either one will kill power to relay and open Normally Open contacts.

Then...

Power straight from battery through a fuse then to  N/O relay contact.

other side of N/O relay contact to feed coil.   

Make sense???

This way clean power is fed only to the coil straight from the battery w minimal connections.  Only fuse and contacts.

Ive been running the same relay for 4 or more years now...without any failure. 
Title: Re: '71 CB100/125 (the un scooter)
Post by: trek97 on Aug 17, 2015, 20:29:15
Be absolutely sure your welder fits a pipe in the inlet of muffler when welding.  Mine egged just the tiniest bit and made fitting them leak free a real bear.  AND my brackets were welded further from the inlet than you posted showing yours.

Cone eng quiet core mufflers install on my 360...

http://www.dotheton.com/forum/index.php?topic=27417.msg731760#msg731760

Title: Re: '71 CB100/125 (the un scooter)
Post by: 45exmayor on Aug 17, 2015, 21:46:33
My buddy has the wheels built, just needs to tension them.  It should be a roller by weeks end.
Title: Re: '71 CB100/125 (the un scooter)
Post by: trek97 on Aug 17, 2015, 21:59:42
wow dude...just wow.
Title: Re: '71 CB100/125 (the un scooter)
Post by: grcamna5 on Aug 17, 2015, 22:34:46
The wheels look good  8)
Title: Re: '71 CB100/125 (the un scooter)
Post by: 45exmayor on Aug 20, 2015, 19:54:45
Wheels back, tires mounted and balanced.  Still probably a full day of sorting out the little details then I can roll it out and run it.
Title: Re: '71 CB100/125 (the un scooter)
Post by: trek97 on Aug 20, 2015, 21:16:22
super nice bubba!
Title: Re: '71 CB100/125 (the un scooter)
Post by: grcamna5 on Aug 20, 2015, 21:18:15
Good looking bike,I'm looking forward to you installing the exhaust and a first ride report.  :)
Title: Re: '71 CB100/125 (the un scooter)
Post by: Rimmy on Aug 21, 2015, 21:55:58
Holy heck is that beautiful.  Great job man!
Title: Re: '71 CB100/125 (the un scooter)
Post by: pwafer on Aug 21, 2015, 22:09:38
Damnn looks good. Love the green/brown combo!
Title: Re: '71 CB100/125 (the un scooter)
Post by: strang on Aug 22, 2015, 15:03:39
yep that looks ace. Green and brown mmm....
Title: Re: '71 CB100/125 (the un scooter)
Post by: 45exmayor on Aug 22, 2015, 18:57:27
Exhaust is done, it has spark.  All of the lights work. It goes outside tomorrow for a test run mad final timing. Had to remove the mirrors to get thru the door. Had landed to paint tank and headlight  Mini Cooper pepper white (cream) but I may just leave it green and get the lower Honda badge.
Title: Re: '71 CB100/125 (the un scooter)
Post by: iatethepeach on Aug 22, 2015, 19:30:27
45exmayor, sorry if I missed this earlier in the thread, but what tires do you have there? They look like Michelins. I'm thinking of putting Duro HF319 on my scrambler, but Gazelles are next on my list.

Have fun on the maiden voyage. The bike looks great.
Title: Re: '71 CB100/125 (the un scooter)
Post by: trek97 on Aug 22, 2015, 19:36:04
It looks super as is.  Im sure even better once she hits the sunshine.

Most interested to hear your review of the muffler.  I love em on the 360.  They are nice deeper mellow-ish quieter sort of sound.  Above 6000rpm they just ROAR-in the good way not ear splitting.

They are quiet enough I was doing about 25mph and had a woman step off a curb right in front of me.  Didnt hear me coming.  Scared us both half to death.  But I had just enough time to brake and ease around past her.
Title: Re: '71 CB100/125 (the un scooter)
Post by: JB77 on Aug 22, 2015, 21:47:52
Looks great. Enjoy that ride.
Title: Re: '71 CB100/125 (the un scooter)
Post by: grcamna5 on Aug 23, 2015, 00:45:18
Exhaust is done, it has spark.  All of the lights work. It goes outside tomorrow for a test run mad final timing. Had to remove the mirrors to get thru the door. Had landed to paint tank and headlight  Mini Cooper pepper white (cream) but I may just leave it green and get the lower Honda badge.

Did you use the stock front exh. headpipe that came w/ the 76' CB125 engine ?
Title: Re: '71 CB100/125 (the un scooter)
Post by: 45exmayor on Aug 23, 2015, 09:33:29
Iatethepeach the tires are IRC NR 53's  size 2.50 - 18. I was going to use Gazalles but the smallest size was 2.75.  I amusing WM-0 alloy rims and the Michelins were going to be too wide.

trek. I looked at many solutions for the muffler and when I found the cone with baffles and a 1 id and a 1" outlet it seemed perfect.

grcamna5. It is the stock '76 head pipe.  It measures just 1/32 under 1 inches and is a fairly tight slip for in the muffler. I picked up a tube of Wurth exhaust assembly paste. It is what the euro car guys use to seal their aftermarket exhaust. Goes on a little,thinner than toothpaste and cures with heat to finish the seal. 


Title: Re: '71 CB100/125 (the un scooter)
Post by: 45exmayor on Aug 23, 2015, 14:52:18
Good news, bad news. It started and runs ok.  I think I need to bump up the advance a little.  While riding it around the block, the rear brake fixing rod come loose at the hub and the brake rod wrapped itself around the hub breaking the activation cam for the brakes.  I just ordered a new brake rod.  Does anyone have the cam from a rear hub.  Thanks,  rick
Title: Re: '71 CB100/125 (the un scooter)
Post by: trek97 on Aug 23, 2015, 15:30:07
hooray & sorry to hear bout the brake.

You can order it from My local honda shop for $13.51,  1971 CB100  part #14, 
CAM, RR. BRAKE
43141-107-010

ship to your door.

http://www.sportlandmotorsports.com/fiche_section_detail.asp?section=2556923&category=Motorcycles&make=Honda&year=1971&fveh=132759
Title: Re: '71 CB100/125 (the un scooter)
Post by: grcamna5 on Aug 23, 2015, 15:59:22
I have an 82' CB125S and looked for the 76' exh. from the CB125s'J'  model which was made in 76' & 78'.
They have the best flow and largest i.d. for the stock pipe;I like the way mine flows w/ the 150cc big bore kit. I'm now looking for a good stock tank for the 82' and the carb.for the 78' model which I like the best.
Title: Re: '71 CB100/125 (the un scooter)
Post by: 45exmayor on Aug 23, 2015, 16:12:57
trek, thanks for the info.  I use the cms parts explosion and it did not show that as a separate pRt from the backing plate.  Just placed an order with sportland.  They will be my new go to place.  The local dealer here in Madison couldn't be bothered with parts for old bikes.
Title: Re: '71 CB100/125 (the un scooter)
Post by: trek97 on Aug 23, 2015, 16:26:24
Sportland has never disappointed me. 99% of the time they have my stuff ready to pickup in two days or less. 

Was the shipping charge reasonable?  Did they charge you tax?  Ive always wondered.  I just pick up stuff on way home from work.

And most times they are cheaper than aftermarket or ebay.  AND genuine Honda parts new in package.

Title: Re: '71 CB100/125 (the un scooter)
Post by: 45exmayor on Aug 23, 2015, 18:54:20
Shipping was $9. No tax. Since time is money, I am happy with he price. 
Title: Re: '71 CB100/125 (the un scooter)
Post by: 45exmayor on Aug 24, 2015, 20:39:39
Before and after pics.  It followed me home about a year ago looking like that and including two large Rubbermaid tubs with the original 100 and an SL125 both non runners in pieces   It has been a slow process but I have truly enjoyed bring it back to life and it appears that it will work out perfectly for me.  I was surprised yesterday when my wife said "you need to find another project bike to tinker with".  That will have to wait until next spring so I can obsess all winter on what to buy.
Title: Re: '71 CB100/125 (the un scooter)
Post by: trek97 on Aug 24, 2015, 21:20:46
Well it looks great.  But, please roll her out into the sunlight and get a good pic of her.
Title: Re: '71 CB100/125 (the un scooter)
Post by: 45exmayor on Aug 24, 2015, 21:33:36
Will do tomorrow if it is sunny.  Kind of grey here today
Title: Re: '71 CB100/125 (the un scooter)
Post by: grcamna5 on Aug 25, 2015, 01:02:29
Well it looks great.  But, please roll her out into the sunlight and get a good pic of her.

+1  8)
Title: Re: '71 CB100/125 (the un scooter)
Post by: 45exmayor on Aug 26, 2015, 19:48:19
Did some tuning today.  I had the clip in the center notch, I raised it one notch.  The static timing was at the F. I added a little advance.  Started right up with choke.  When the feR brake parts come I'll ride over to the tech park where there are quite streets and a couple of long hills Nd do some plug chops.  It feels like I am fairly close but don't want to run it too fast with only a front brake.
Title: Re: '71 CB100/125 (the un scooter)
Post by: JB77 on Aug 27, 2015, 14:38:56
Looks great, hope your parts come in quick.
Title: Re: '71 CB100/125 (the un scooter)
Post by: WhyNot on Aug 27, 2015, 14:54:11
Did some tuning today.  I had the clip in the center notch, I raised it one notch.  The static timing was at the F. I added a little advance.  Started right up with choke.  When the feR brake parts come I'll ride over to the tech park where there are quite streets and a couple of long hills Nd do some plug chops.  It feels like I am fairly close but don't want to run it too fast with only a front brake.

Yea man......that bike does look good........

Hope I'll be able to get mine up and going by spring again.
Title: Re: '71 CB100/125 (the un scooter)
Post by: trek97 on Aug 30, 2015, 07:38:25
did you get the brake cam yet?
Title: Re: '71 CB100/125 (the un scooter)
Post by: 45exmayor on Aug 31, 2015, 09:15:16
trek
The cm and rod arrived Saturday and I got them installed and made sure there was cotter Kenya or safety wire on everything.  Did a 10 mile shake down ride yesterday.  Still a little tuning work to do. Runs strong on take off and beyond throttle but is a little flat at throttle.  I need to get a couple of plugs and spend some time on the tech park road.
I have decided to keep,the green tank and spray the head light black to match the fenders.  Sprayed the Honda wings black and mounted them.  Ordered the Honda script for the tank off of eBay. I'll spray them black also. 
Title: Re: '71 CB100/125 (the un scooter)
Post by: trek97 on Aug 31, 2015, 19:54:11
Awesome bro!  I was really hoping the parts met your expectations.

Everything sounds great.  Keep us posted on the carb tune.
Title: Re: '71 CB100/125 (the un scooter)
Post by: 45exmayor on Sep 01, 2015, 17:32:47
Since we only have a carport, I needed a cover and found this one on Amazon.  $20 delivered.  Seems to be decent quality and fits the bike really well.  Should be a good winter cover for us in the northern areas.  The bike will be stored inside in winter at a friends garage, but the cover will really help kep,it clan and dry during riding season.
I ordered the small size.

http://www.pilotautomotive.com/carcover/CC-6321_grid.html
Title: Re: '71 CB100/125 (the un scooter)
Post by: sleventynineR on Sep 01, 2015, 21:38:00
Scribd- I've got a 70 CB100 been tinkering with; need to get some pics up, but horrible about documenting builds.
Title: Re: '71 CB100/125 (the un scooter)
Post by: WhyNot on Sep 01, 2015, 21:56:00
Scribd- I've got a 70 CB100 been tinkering with; need to get some pics up, but horrible about documenting builds.

Don't feel bad......I'm the same way.......just put 'er out there, and you'll be surprised........!!!!!

Lots of great help on here.
Title: Re: '71 CB100/125 (the un scooter)
Post by: iatethepeach on Sep 01, 2015, 22:04:28
Scribd- I've got a 70 CB100 been tinkering with; need to get some pics up, but horrible about documenting builds.

Yeah, do it!
Title: Re: '71 CB100/125 (the un scooter)
Post by: WhyNot on Sep 01, 2015, 22:06:10
Scribd- I've got a 70 CB100 been tinkering with; need to get some pics up, but horrible about documenting builds.

Yeah, do it!


Do it........do it....!!!!!!!!!!!!!!!!!!!!!!!
Title: Re: '71 CB100/125 (the un scooter)
Post by: trek97 on Sep 01, 2015, 22:25:06
Scribd- I've got a 70 CB100 been tinkering with; need to get some pics up, but horrible about documenting builds.

Yeah, do it!


Do it........do it....!!!!!!!!!!!!!!!!!!!!!!!

Double friggin dare you to do it!  right now!
Title: Re: '71 CB100/125 (the un scooter)
Post by: JB77 on Sep 01, 2015, 22:53:42
https://youtu.be/ZLZj3zOUZNs (https://youtu.be/ZLZj3zOUZNs)
Title: Re: '71 CB100/125 (the un scooter)
Post by: sleventynineR on Sep 01, 2015, 23:50:52
Peer pressure ::)

I'll get to it soon
Title: Re: '71 CB100/125 (the un scooter)
Post by: 45exmayor on Sep 08, 2015, 18:02:56
I finally think I am done with changes for this season.  I found some HONDA lower tank badges on ebay for $20 with the screws.
painted them black, sprayed the headlight bucket and rim black and wrapped the exhaust. the Kriga bag i used on the monster fits really well and gives me a place for a couple of extra plugs and some tools. Now I'll ride it until it's time to store it for winter.  Next season I want to chrome the fork springs (like trek did) and shorten the headlight ears about an inch when I have it apart.






Title: Re: '71 CB100/125 (the un scooter)
Post by: pwafer on Sep 08, 2015, 18:07:21
Looking great! I am probably going to do the same setup with my exhaust
Title: Re: '71 CB100/125 (the un scooter)
Post by: sleventynineR on Sep 08, 2015, 18:10:06
I finally think I am done with changes for this season.  I found some HONDA lower tank badges on ebay for $20 wit the screws.
painted them black, sprayed the headlight bucket and rim black and wrapped the exhaust. the Kriga bag i used on the monster fits really well and gives me a place for a couple of extra plugs and some tools. Now I'll ride it until it's time to store it for winter.  Next season I want to chrome the fork springs (like trek did) and shorten the headlight ears about an inch when I have it apart.

BOTM nominee?  Looks great!
Title: Re: '71 CB100/125 (the un scooter)
Post by: maxDTM on Sep 10, 2015, 01:59:03
^I'd second that. Great looking bike, Rick! Are you running 18" wheels front and back? I like the way they look.
Title: Re: '71 CB100/125 (the un scooter)
Post by: trek97 on Sep 10, 2015, 06:40:16
How do you like the muffler?  Is it any quieter than stock? 
Title: Re: '71 CB100/125 (the un scooter)
Post by: 45exmayor on Sep 10, 2015, 08:25:52
trek. Really like the muffler.  Never had the bike running with a stock one but it is louder than others I have heard.  It is probably 30% louder than stock.

Max they are ⅛'so front and rear.  With 2.50 tires on both ends.  In the little I have ridden it I really like the way it feels.  Runs very straight, steers in quickly and since these are so light changes direction is ess curves easily.  The only thing I an still getting used to is I don't feel much counter steering pressure like I did with the monster.
Title: Re: '71 CB100/125 (the un scooter)
Post by: trek97 on Sep 10, 2015, 08:35:08
Really like the muffler.  Never had the bike running with a stock one but it is louder than others I have heard.  It is probably 30% louder than stock.

Holy cow, thats pretty disappointing to hear.  Was hoping it was atleast as quiet as stock.  Those quiet cores on the 360 are atleast 50-60% quieter than the crappy glass packs I had, thank god.  Riding that thing was miserable after 10 minutes.  And guys really hated riding behind me, before.

I am just blown away how quiet the 200 is.  Like Stealth mode.   :)
Title: Re: '71 CB100/125 (the un scooter)
Post by: 45exmayor on Sep 11, 2015, 09:57:06
I had Fresco conical carbon high mounts and an open air box on the monster so loud is a relative thing to me.  The 100 is quiet to me.
Title: Re: '71 CB100/125 (the un scooter)
Post by: 45exmayor on Sep 27, 2015, 19:21:09
After several short 5 mi test rides I rode to the monthly vintage bike coffee gathering.  40+ miles round trip.  She is really running well on the bottom and top ends and is a little rough mid throttle.  Will work to sort that out next week. Got up to 65 indicated pretty easily.  She feels very nice in the low to mid 50's and will hold that speed up long grades in 5th. She tracks really well and changes direction amazingly quickly.  The shocks set on the lowest notch and 15 wt fork oil give a very nice ride.  Next Sunday is the local SlimyCrudRun and I will run out there to look at the bikes.  It is about 60mi round trip.
Enjoy today's pics.  More next Sunday

Title: Re: '71 CB100/125 (the un scooter)
Post by: 45exmayor on Oct 06, 2015, 18:28:29
It seems that I have finally got the carb very close to right.  The '76 125 has a spigot mount 24 mm carb with a 110 main jet.  Finally put the needle clip in the top (leanest) groove and that solver the roughness in the mid throttle range.  The air screw is between and 1 turn out.  The bike idles great and pulls thru the gears smoothly.  The to throttle burble is gone.  The snorkel for the filter is a length of 1 id silicon radiator hose 7 in long on the outside of the bend.  It is very smooth inside so I don't thinks it upsets the airflow.
I am running it on 93 octain 2 gal of gas.

I used this guide I found on the site to sort it out: http://www.dotheton.com/forum/index.php?action=dlattach;topic=66720.0;attach=151348;image

It was very helpful.  I hope this helps any of you with 100/125s running without the stock air box.
Title: Re: '71 CB100/125 (the un scooter)
Post by: 45exmayor on Apr 01, 2016, 09:21:40
I had a conversation with Terry Miller (http://www.millervintagecycle.com/index.html) about better brake shoes.  He recommended these from EBC 
they are sintered metal and listed as rear shoes for an XL200. I got them from JC Motors in California they were $42 delivered for both sets.  I'll fit them when we are back North md April and let you guys know how they are
Title: Re: '71 CB100/125 (the un scooter)
Post by: coyote13 on Apr 01, 2016, 11:26:16
Cool stuff!  Really great to hear you've got it running well and the brake pad upgrade is quite useful information.  Looking forward to hearing how those work out.
Title: Re: '71 CB100/125 (the un scooter)
Post by: grcamna5 on Apr 01, 2016, 14:19:14
Thanks for posting that link to Terry Miller 45exmayor  ;)
Title: Re: '71 CB100/125 (the un scooter)
Post by: 45exmayor on Apr 01, 2016, 18:43:37
I will be sending my 122cc SL motor parts to him this spring (barrel,head and crank). When I get that back together I'll stick it in and run it until he can build out the 76 motor int a reliable 135cc hot rod.  Then I will be selling the 122.
Title: Re: '71 CB100/125 (the un scooter)
Post by: trek97 on Apr 01, 2016, 22:05:59
 8)
Title: Re: '71 CB100/125 (the un scooter)
Post by: grcamna5 on Apr 21, 2016, 09:48:51
This just showed up on Craigslist here in Madison
http://madison.craigslist.org/mcy/5549043148.html

Rck

Nice looking classic.Will it be possible to register if it doesn't have a title in WI.?I wasn't sure if the bike is old enough and they'd allow that
Title: Re: '71 CB100/125 (the un scooter)
Post by: 45exmayor on Apr 21, 2016, 15:06:27
You really need a title in Wisconsin. It is almost impossible without.  My bike is registered with tje motor # of the dead 100. I will try to get it moved to the frame this season.  I tried to call the cl owner but no answer. Will give a try later and post if there is a title or no

Ick
Title: Re: '71 CB100/125 (the un scooter)
Post by: 45exmayor on May 04, 2016, 18:05:13
fitted the sintered brake shoes today they are a perfect replacement. 
Title: Re: '71 CB100/125 (the un scooter)
Post by: 45exmayor on May 20, 2016, 20:04:50
Made a change to the bars.  I had originally planned on using these moped m bars but was concerned that they were too low.  After riding with the renthals last fall it felt a little cramped.  Took a longer ride with them today and they are really good.  Also got a chance to test the new brake shoes.  They are a definite upgrade!  I have a short emgo lever on the brake and one it pulls up solidly with a two finger pull.  I now feel safe in stop and go traffic which I didn't with the stock replacement shoes.