CB350 Built by a teen (Weld Now, Grind Later)

Re: CB350 Built by a teen (don't forget the coolant)

Man, Matt beats me to this thread most days lately. hehe.

Indeed, we got some good work done. In my worn out lazy state after class this morning I forgot the keys to my dads truck (DOH!) so we had to wait for him to get out to jersey on his honda shadow... which I now have to fix the clutch on (bleh). However, it's always best to look at the bright side of things, and there were a few today. I got the stainless washers cut down to size (easier said than done) and they came out fairly well. The better of the two had an outside diameter that only varied by 1/10 of an inch; not bad for a piece cut on a bandsaw and smoothed down with a belt sander.

Matt always has good advice to give... and truly, I've come to realize that safety glasses, however cumbersome I may find them, are worth the trouble to save my eyesight. You would think my father would have embedded that into my head as he lost vision in one of his eyes because of a lathe accident; one which could have easily been prevented with safety glasses. alas, he is oldschool, and unless if it involved molten metal or lead paint, I seldom used safety gear while under his supervision. Thankfully, things have changed as me and him have come to realize the stupidity in that (and me nearly losing an eye of my own a while back was a nice reminder as to why one should wear safety gear).
 
Re: CB350 Built by a teen (don't forget the coolant)

If your making washers from flat plate, use a hole saw at low (LOW) speed then grind close to size.
de-burr center, grind off corners and work around until rough shaped.
To get round, allow to spin on a socket which is close to inner diameter, use extension so you have more control.
It's possible to get pretty accurate
You should also have scribed concentric circles to work to.
 
Re: CB350 Built by a teen (don't forget the coolant)

PJ... our last attempt with hole saws on stainless failed miserably. in short, we simply don't have the gearing capabilities as of right now to go slow enough for hole saw on stainless. As it is, and the pictures will show this, it is perfectly acceptable, especially for something that will not be seen ever. :)
 
Re: CB350 Built by a teen (don't forget the coolant)

I'm a bit short on time right now. I will chuck up pics and you can read some that I posted on my blog and I'll also let Dave fill in the blanks, since, well, this is SUPPOSED to be his build thread and he actually did work yesterday. It was even good work, too. LOL!

weekend_update_22.jpg


weekend_update_23.jpg


weekend_update_24.jpg


weekend_update_25.jpg


weekend_update_26.jpg


We're actually getting close to being able to finish his header! THAT is going to be a good day.

More here if you don't want to wait for Dave to fill in the blanks:
http://beaverbuilt.blogspot.com/2012/06/long-weekend-update.html
 
Re: CB350 Built by a teen (don't forget the coolant)

So the washers we ordered (the second time around, the first were too large) had an inside diameter that was tight by 1/16", so I opened it up as evenly as possible using Matt's super awesome die grinder with a carbide burr.

as you can see in the pictures, I got it to be pretty dang tight; the better of the two is a really tight press fit, which will help out greatly when Matt welds it to the pipe. I found a good trick to sanding the rough edge down after cutting it on a bandsaw (OD was way too large)... bang it onto the edge of some spare header material and use that to get a good grip on the washer to sand it down.

Ultimately, I got a super good fit, as the picture of the washer in the port on the spare head shows. The last picture shows just how much material had to be cut down.
 
Re: CB350 Built by a teen (don't forget the coolant)

Matt's birthday weekend was this weekend, so no work done at the shop. The bug bit me hard, and while scratching like a crack head needing to work on a bike, I came across something on craigslist.

Woops... :)

http://www.dotheton.com/forum/index.php?topic=15707.msg420183#msg420183
 
Re: CB350 Built by a teen (don't forget the coolant)


Get ready for 'Scooter Project Built by a 40 Year Old'... ::)
 
Re: CB350 Built by a teen (don't forget the coolant)

t71ford said:
Get ready for 'Scooter Project Built by a 40 Year Old'... ::)

http://www.dotheton.com/forum/index.php?topic=38653.0

if this one takes me 20 years, there is something wrong with me.
 
Re: CB350 Built by a teen (don't forget the coolant)

Aw . . . )(#$*

I wanted to finish his motorcycle first . . . Oh well.
 
Re: CB350 Built by a teen (don't forget the coolant)

The_Beave said:
Aw . . . )(#$*

I wanted to finish his motorcycle first . . . Oh well.

Haha... don't worry Matt... cb350 comes first.
 
Re: CB350 Built by a teen (don't forget the coolant)

hi guys, just signed up to this site after spending 4 nights reading all 158 pages of this thread (now 159...) and i gotta say the progress made has been great, if a little longwinded........much has been learned by many people.
personally i'd like to learn more about Miss Zebra 2012.... LOL
hopefully we'll see the finished product later this year and i reckon it'll be up to the standard of the engine polishing, which is amazing, superb work. and then when its all done and dealt with get a real bike (i'd recommend a Vmax as a good starting point, if you're after "doing the ton" second gear will see you right, giving mine a bit of a rev off the lights one day i change into 3rd gear at 105mph and into 4th at 135mph then saw the flashing blue lights behind me so i accelerated.....)
good luck and GET ON WITH IT. hahahahahahahahaha
cheers spotty
 
Re: CB350 Built by a teen (don't forget the coolant)

Thanks spotty... you must be new here; you haven't made fun of me yet... hahaha...

Ms. Zebra was fun for the short while it lasted. not the kind of girl you'd want to spend a lifetime with though.

Theres a reason I don't own what you call a "real" bike... I'm young and stupid, and when I like to use things for their intended purposes. Which is not a problem, for things like a cb350 that are meant to travel around 30-65 mph, but with a modern sport bike... lets just say I would get into trouble really quickly. Eventually I would like to get myself an SV650 though; really great platforms for an amazing sport bike.

I don't approve of the running from cops. Yes, you can outrun them... but you can't outrun cameras or the helicopter. Be smart.

I do, however, approve of my thread making you want to join the site... Hey Tim (administrator, since you don't know him), do I get some kind of compensation for this? :)
 
Re: CB350 Built by a teen (don't forget the coolant)

Yes, you get to keep adding more pages without doing anything ;D
 
Re: CB350 Built by a teen (don't forget the coolant)

hiya rocan, i agree with you about using it for its intended purpose but as you get older (i'm staring down the barrel of 50 meself) you do learn restraint and when its appropriate to misbehave, in the case of running from the cops i left the idiot who tried to drag race me to explain things to the cuntstables, they were also a mile or more back and behind a lot of traffic and it was dark so i felt justified in buggering off (and confident of getting away with it) not something i do often or would recommend to others
i also have a c11 bsa 250 which is getting built as a trials bike so that should slow me down
as for ms zebra, well if we're lucky someone like that comes along for a while when we're still young enuf to enjoy the ride (so to speak),and if we're really lucky we don't knock 'em up and get stuck for life.....hahahahaha
just realised i'm perpetuating the "this thread isn't about building bikes" problem LOL
 
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