So you bought a CM400 / CB400T, now what...(50+ Build Links!)

I'm curious what everyone is doing to deal with the old fasteners on their bikes. Frankly, on my '78 CB400T they aren't as awful as my '01 M900 (ducati really used cheap bolts), but most could use some replacing.

Do you buy a bunch of random metric bolts at the hardware store to keep on hand? Is there a restoration Japanese bike upgrade fastener kit out there?
 
I've been buying as needed. It can get expensive doing it that way. The fact that I've only been buying stainless doesn't help with cost. If you need a lot of hardware you may want to contact Fastenal or some other hardware company and see about buying bulk.
 
Nealox said:
What are the consequences of removing the exhaust equalizer box thats under the engine?
Click to expand...

The crossover is important on twins for scavenging. Burnt exhaust gases are drawn out of the combustion chamber when the exhaust valve opens. A 2-1 system will likely perform the same or similar scavenging and be nearly or just as good. Just don't go to a true dual system as you will loose power.

Our '78 CB400 came to us with true duals. My father located and installed an OEM crossover and claims the performance improvement was notable.
 
tsbigdog said:
I've been buying as needed. It can get expensive doing it that way. The fact that I've only been buying stainless doesn't help with cost. If you need a lot of hardware you may want to contact Fastenal or some other hardware company and see about buying bulk.
Click to expand...

Not the answer I was looking for, but the one I expected. Bulk is waaayyy much more than I need. Anyway, thanks tsbigdog.

The search continues. In the meantime, I'll trek to the hardware store as needed. [sigh]
 
With the internet at our fingertips, there are a number of distributors of suitable hardware. I am a fan of the smooth sided Allen Socket type bolts in Stainless steel. Most can be souced from the suppliers as mentioned. I have found a few "Odd" lengths that I had to decide whether the next standard size up or down is most suitable. the very long 2" + can be a challenge to find.

http://www.fastenal.com/web/home.ex

http://www.fastener-express.com/

http://www.grainger.com/Grainger/fasteners/ecatalog/N-bi6

http://www1.mscdirect.com/eCommerce/NavigationServlet/Fasteners-Adhesives/Bolts-Screws/Bolts/_/N-77dwf?cm_re=Category-_-BodyLink-_-Bolts
 
alright guys, so I finally got my bike put all back together and running! just needs a couple things to be addressed to get her in streetable order. But i'll ask about that after the pics.
here she is:
386745_581910081825889_1821084326_n.jpg

and here with my brother riding her:
312479_582341345116096_1528112292_n.jpg


on to the questions:
1. none of my lights are working, can anybody upload a pic of the front and rear signal light wires and where they go? or maybe a diagram? color reference?
2. my kick stand seems pretty sketchy and i'm not sure to trust it. is there a way to spruce it up? replace it?
3. what size and type is the headlight/bucket (82 cb450t). mines pretty fudged up. the back of the bulb has a 3 prong harness.
 
you can also run duels but connect the pipes together underneath and it will help with the scavenging,also if you wrap the pipes it will help retain heat inside that also helps with the scavenging.
 
Glad to hear your back on the street. I'm so close i can smell the exhaust.....

Regarding your questions. I don't want to come off rude or beat you up like some might or many forums/threads would, but I recommend you do at least a half hour research on the web before posting any question. I can't tell you how many hours I have spent researching, reading studying information found on the internet. If you don't do your homework you run the risk of being lit up .....

1) if you don't have one already pick up and or download a manual for your bike. I like have both a PDF on my computer to study and a hard copy (Usually at least 2 Hanes, Clymer etc.) for reference in the garage. I remember when you needed 2 manuals before computers....One clean "Inside" copy and another greasy dog eared copy for the garage. They are available online Here is a PDF on your bike. http://www.mediafire.com/?u62l66c5u0mkx3h

2) "Sketchy" ? Is it loose? Worn Out?, Too Short?, Too Long? Bent?

3)What is "Fudged up" Lamp or Bucket? Or Both? If both the You can use about anything, If lamp the 3 prong is VERY common. Do a search on eBay, you don't always have to buy it it, but can learn a lot too...Price ranges, what size, what it looks like, possibly other models that use it etc.
 
Re: So you bought a CM400 / CB400T, now what...(49+ Build Links!)

jorgo said:
Thanks Frankenfe,

Its my first bike and been a fun build. I copied the seat design from some of the bratty 750s on bikeexif a while back and it seems to suit the frame shape fairly well. Just sat the front of the tank down a little to try and get a horizontal line matching the seat line. Has some firestones now and just have to paint the caliper and maybe the peg brackets black and its done. Will add a few more pics.
Click to expand...

Jorgo,

Awesome build. Do you have a build thread or any more photos yet? I'm interested in how you sat down the front of the tank. Did you cut out the mounts and reweld them higher on the inside of the tank?

Thanks
 
I'm replacing the bearings etc on my 78 CB400Tii. (I ordered them from DCC.)

Does anyone know if I should be applying some lubricant to them? Anti-sieze or axel grease or something?
 
Sorry, I should clarify. The bearings are sealed ("tapered" I believe). The OEM I removed were loose bearings. So what I'm wondering is if sealed need greasing or if that is just for loose bearings?
 
If you are referring to tapered Stem Bearing, they should be "packed" with grease.

I use one of these but many are competent and comfortable packing "By Hand"

http://www.youtube.com/watch?NR=1&v=0xIAZpCkl14&feature=endscreen
 
Thanks, Frankenfe. That's exactly what I meant.

I guess there is a tool for everything. Not sure ill find something like that at the auto parts store, so think I'm going to have to try hand packing.
 
Just to show it is possible.... an engine mounted Oil PSI Gauge.
 

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great read. Will take some time to read all the info. and the links to the builds are inspirational.

I pikced up a 81 cb400t last week. Previous owner has installed straight pipe on. Bike is otherwise stock, but the bike doesn't run good with those pipe on.

Is there any pipes out there that flows similar to stock? I just want to get the bike to run good at the moment, and have a good base line for any future mods.

Haven't pull the carb so I can't say if the jetting is stock.
 
Wondering if anyone has gone from the OEM 6 wire ignition switch to a 4-wire CB type ignition switch? I find I can mount the 4 wire the way I want to, but am a bit lost on making sure all the wires go to where they need to go! Anyone done this before and can steer me in the right direction?
 
No I haven't changed out the ignition switch ...but... after a quick look at the Wiring Diagram...

The "Black n White" wire and the "Dark Green" wires could be eliminated.

In the "Off" or "Park" key position they mimick the connection made to "Kill" the motor as the "Run" switch does in either of the "off" positions. It effectively grounds (Dark Green Wire) the (Black n White) wire from the CDI. As long as you cap the black n white wire from the CDI to prevent it from grounding, you can forget about the dark green wire and just focus on the other 4 wires. (Your "Run/Off" Switch will Still Work)

"Black" should connect to "Red" in "On" position
"Brown n White" should connect to "Brown" in "On" position

"Red" should connect to "Brown" in "Park" position.


SO then after looking at early 750 wiring (I looked at a K2) here is what you need to do.....

Your "Red" Wire to "Red" Wire on a 750 Switch
Your "Black" Wire to "Black" Wire on 750 Switch
Your "Brown" Wire to "Orange" Wire on 750 Switch
Your "Brown n White" Wire to "Orange n White" Wire on 750 Switch
Your "Black n White" wire CAP
Your "Dark Green" forget about it its just a ground.
 
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