Author Topic: Happy Birthday Me!  (Read 2022 times)

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Offline JBMorse

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Happy Birthday Me!
« on: March 27, 2010, 07:01:15 AM »
When you reach the ripe old age of 26, you realize cake and ice cream has slightly less appeal than when you were a kid.  So I remedied the situation with a new project!  


It's a 1970 CB350 frame with, apparently, a scrambler engine.  It turns and has compression, though I don't have numbers yet.  After summer when I get back from my trip, I will get to work on it.  I was thinking cafe but I've changed my mind.  It's going to be a scrambler, but not quite stock.  Here's a couple pics from my inspiration gallery:


-I'm thinking a solo seat, but not a tractor seat.  Something more 60s, like the ones on a Trail 90.  
-The fenders will be painted silver like a 60s Honda.  The rear fender will be exposed and there will be a metal luggage rack over it, like early bikes would have.
-I'll get some stock carbs, mount pods (gasp) on them, and do away with side covers.  I may try and build a little metal tool box next to the battery, like an old British bike.
-I'll go with the stock srambler pipes if I can find them.  If all I can find is headers, than I'll use the Emgo shorty mufflers (If they fit).
-Probably will go with a stock CB tank.  The scrambler tank has slightly less capacity.  I will paint it powder blue or something similar to a 50s British scrambler.  Probably will have knee pads.
-I'll go with those chrome aftermarket headlight ears, but I still want fork gaiters, so I gotta figure that out.  I've found an aftermarket chrome headlight similar to stock for around $60.
-Turn signals will be bullet style, sort of like aftermarket Royal Enfield ones.  Tail light will be a British style, like the "Lucas" type.  Smaller than stock.
-I'd love to find knobby tires like that Ariel above, but I haven't found anything in that size.  We'll see.
-I'll use lower bars, Euro or superbike.  Not ideal for a scrambler, but lots of the old British bikes had em.  
-I'll probably build my own wiring harness going by the stock design.  The wires are a mess and some are non-existant.  Since I'm going to get rid of the starter, I'll follow the SL350 diagram.

So those are my ideas so far.  This project won't begin at least until fall this year, and will drag out as long as it takes.  I'll be building on a budget, but I like the idea of piecing things together as I go.  I am excited to strip the frame, paint it, paint and clean the engine, go right through it.  I never got to do that on my 500.  I'll always have the 500 to ride while I'm doing this, too.
Thanks for looking!  I'll eventually start a build thread, but it will be a long way off.
Happy re-winter! (it's f#$# 20 degrees in NH)
Jeremy B
 
1971 CB500K

Offline HavocTurbo

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Re: Happy Birthday Me!
« Reply #1 on: March 27, 2010, 10:15:40 AM »
Gahaha that'll be friggin sweet!!!

Happy B-Day!!!
'48 HD Panhead - Exxon Valdez
'78 CB550K - Fokker CB.3
'78 Honda CB750K - Mavrik
'80 Yamaha XS850G - Kanibalistik
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Offline chickenman_26

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Re: Happy Birthday Me!
« Reply #2 on: March 27, 2010, 01:19:19 PM »
That'll be fun. We'll see how many of your build ideas survive the summer.  ;D  One thing I'll tell you before you even begin - If you think you're going to paint the cases, change the oil, and run that old engine as is, you have another think coming. But you'll learn for yourself...
Oh - happy B-day.

Stu
MCN DTF

Offline JBMorse

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Re: Happy Birthday Me!
« Reply #3 on: March 27, 2010, 08:38:37 PM »
chickenman,
I suspect you're right on the need for engine work.  It sounds okay spinning with the kick start, but it looks like it's been sitting for quite some time and it's pretty crusty.  Probably will need valve seals and such.  In a way I'm all for a top-end rebuild, but I'm also hesitant to spend the money.  Not just on parts, but tools.  I've never done engine rebuild work, so I'll need all the stuff like valve spring compressor, cam chain breaker/riveter, etc.
We'll see.  I won't be doing anything for a while anyway.  I'm excited to build a personalized creation.  This thing's already a mutt and needs everything, so I feel no pressure to "keep it stock" or anything. 
1971 CB500K

Offline MickeyX

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Re: Happy Birthday Me!
« Reply #4 on: March 27, 2010, 10:53:22 PM »
In case you didn't know, since you specified it was a CB with a "scrambler engine", the CB and the CL (scrambler) were essentially the same bike, just different pipes and some odds and ends on the body, bars, that kind of stuff. You can pretty much interchange as much as you want. I think the sprockets for the chain were different so the CB could handle highway whereas the CL would do better around town and in the dirt hills.

Can't wait to see what you do with it. We have a '69 CL350 that I'm finally able to start into and a '72 CL350 that is coming close to being finished. At least, we hope.  ;)
1969 CL350 Scrambler... almost done!!! Well, until something else goes wrong. :)
2006 HD 883 Sportster, stock. No use changing it, it's still gonna be a Harley.

Offline chickenman_26

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Re: Happy Birthday Me!
« Reply #5 on: March 28, 2010, 10:01:23 AM »
chickenman,
In a way I'm all for a top-end rebuild, but I'm also hesitant to spend the money.  Not just on parts, but tools.  I've never done engine rebuild work, so I'll need all the stuff like valve spring compressor, cam chain breaker/riveter, etc.
JB,
The engine is the heart of the motorcycle. No matter how good a person might be at cleaning and polishing, a bike with a bum engine will just take up space in the garage. There's no getting around it. You WILL end up spending the money on parts and tools. And with this particular engine, things had better be right the first time to prevent you from having to pull the engine out of the frame again. You can't even remove the breather cover with the engine in the frame, so a total teardown once it's out is the most logical way to go.

All of us screw up things, especially when we first start learning. I don't think you'll be an exception. I think that a great learning experience is the best thing you'll give yourself from this B-day present. Download a factory service manual from this site, and spend your spare time this summer studying it and asking questions. Hopefully, you'll have many more birthdays and many more 2 wheeled projects. Consider any money you spend on this one to be a good educational investment. But most importantly, have fun.

Stu
MCN DTF

Offline Green550F

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Re: Happy Birthday Me!
« Reply #6 on: March 28, 2010, 07:41:57 PM »
If you have the extra funds, new carbs are worth it! Simply avoids a lot of work, hassles, and frustration.

I tried skipping the engine work and ended up losing the cam sprocket bolts. Total tear down anyway. Just ended up sratching the newly painted frame...

Do yourself a favor, do it right the first time! ;D

And Happy B-Day! ;)
93 Kawasaki Voyager XII
70 Honda CL350 Cafe