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Author Topic: handlebars that won't tighten up and rear shock question  (Read 2224 times)

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cbcoker

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handlebars that won't tighten up and rear shock question
« on: March 18, 2006, 12:40:40 PM »
the handlebars on my 72 CB350f have play between the top triple tree and the bar mounts. there is a rubber piece that attaches below the bar mounts that might serve as a way to limit vibration. it annoys me that the bars pitch forward when braking and despite my best efforts not tightening of the bar mounting bolts will pull out the slack. any suggestions? what role do those rubber bushings play, I'd guess they are just a way to limit mirror vibrations?

also, atop both of my rear shocks are cylinders that cover the top half of suspension springs, they look like a cover for the springs. how hard are they to remove? i don't like the look of them but if I do remove them i don't have a way to compress the spring to reinstall it. even at the smallest level of preload i don't know that i could put the spring back into place after removing it. any tips, advice or experience is appreciated...
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Offline Jay B

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Re: handlebars that won't tighten up and rear shock question
« Reply #1 on: March 18, 2006, 03:03:00 PM »
Hmmm... The handlebars on my '74 350f are solid mounted. They must have made a change along the way. Maybe a '74 top clamp would solve your problem. As for shocks, I'd really recomend some replacements. I bought a set from Tim the shock guy along with lots of others and the difference is huge. $60 for the set incl. shipping. I've got his email addy if you'd like it.
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Jay
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Offline Terry in Australia

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Re: handlebars that won't tighten up and rear shock question
« Reply #2 on: March 18, 2006, 03:31:49 PM »
Someone's been messing with your bike mate, I restored a 1972 CB350F and don't remember any rubber vibration damper thingy, and a CB350F doesn't vibrate anyway, you may need a new top triple, or "shim" the bars. Here's a link to Tim's excellent $50.00 Boge shock auction, they're great, I bought 5 pairs!

http://cgi.ebay.com/ebaymotors/Vintage-Honda-CB-750-550-400-350-New-Boge-Rear-Shocks_W0QQitemZ4623424504QQcategoryZ35592QQssPageNameZWDVWQQrdZ1QQcmdZViewItem

Cheers, Terry. ;D
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comcrx

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Re: handlebars that won't tighten up and rear shock question
« Reply #3 on: March 18, 2006, 04:44:06 PM »
amen brotha on the shocks. my girlfriend just bought a pair for my birthday and I got em mounted today. awesome, just awesome
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Offline scunny

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Re: handlebars that won't tighten up and rear shock question
« Reply #4 on: March 18, 2006, 06:38:20 PM »
I'm with Terry and comcrx on the shocks, they look good but I'm still sitting on an engineless frame making brooom brooom noises at the mo.
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Offline crazypj

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Re: handlebars that won't tighten up and rear shock question
« Reply #5 on: March 19, 2006, 06:16:19 AM »
CB350 twin has rubber mounted bars. Tighten until the nuts strip but you wont stop the movement. you need to remove the nuts &washers holding clamps to top yoke, have a look at the stepped area and find a couple of flat washers that fit over it to compress the rubbers a bit further. you need 12mm inside hole (half inch) and 7/8" will work for the outside diameter( its about 23mm)
PJ
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cbcoker

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Re: handlebars that won't tighten up and rear shock question
« Reply #6 on: March 19, 2006, 12:44:05 PM »
thanks crazypj, i noticed that the bushings were not completely sitting within the yokes. i was worried that by just continuing to tighten the bolts they could shear the bolts under heavy braking. the washers are dished on the ends so i would guess that i would place the shim below the dished washers and right next to the bolt and the handlebar mount. i couldn't get the bushing to compress anymore but i think that the washers will do the trick...thanks
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Offline Terry in Australia

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Re: handlebars that won't tighten up and rear shock question
« Reply #7 on: March 21, 2006, 02:20:39 AM »
Quote from: cbcoker on March 19, 2006, 12:44:05 PM
thanks crazypj, i noticed that the bushings were not completely sitting within the yokes. i was worried that by just continuing to tighten the bolts they could shear the bolts under heavy braking. the washers are dished on the ends so i would guess that i would place the shim below the dished washers and right next to the bolt and the handlebar mount. i couldn't get the bushing to compress anymore but i think that the washers will do the trick...thanks

So is it an obese twin (boat anchor) or a beautiful little SOHC 4? Man, I'm so confused.....................  ???
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I was feeling sorry for myself because I couldn't afford new bike boots, until I met a man with no legs.

So I said, "Hey mate, you haven't got any bike boots you don't need, do you?"

"Crazy is a very misunderstood term, it's a fine line that some of us can lean over and still keep our balance" (thanks RB550Four)

Offline cb(r)

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Re: handlebars that won't tighten up and rear shock question
« Reply #8 on: March 21, 2006, 05:15:23 AM »
Quote from: scunny on March 18, 2006, 06:38:20 PM
I'm with Terry and comcrx on the shocks, they look good but I'm still sitting on an engineless frame making brooom brooom noises at the mo.
lol.  I am just glad that I am not the only one who does that!
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Offline Raul CB750K1

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Re: handlebars that won't tighten up and rear shock question
« Reply #9 on: March 21, 2006, 06:20:03 AM »
My boat anchor (CB350) haver rubber bushings at the handlebar clamp mounting bolts...


Raul
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cbcoker

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Re: handlebars that won't tighten up and rear shock question
« Reply #10 on: March 21, 2006, 07:21:02 PM »
its a four cylinder.
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Offline Terry in Australia

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Re: handlebars that won't tighten up and rear shock question
« Reply #11 on: March 22, 2006, 12:46:03 AM »
Quote from: cb(r) on March 21, 2006, 05:15:23 AM
Quote from: scunny on March 18, 2006, 06:38:20 PM
I'm with Terry and comcrx on the shocks, they look good but I'm still sitting on an engineless frame making brooom brooom noises at the mo.
lol.  I am just glad that I am not the only one who does that!

You do what? Man, you're just sick! Ha ha, Brrrmmm, Brrrmmmm! ;D
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I was feeling sorry for myself because I couldn't afford new bike boots, until I met a man with no legs.

So I said, "Hey mate, you haven't got any bike boots you don't need, do you?"

"Crazy is a very misunderstood term, it's a fine line that some of us can lean over and still keep our balance" (thanks RB550Four)
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