Riding Question

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Watchfuleye
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Riding Question

Post by Watchfuleye »

For some reason at times I get a Wobble while riding my 79 CBX over 100 km per hr.

Anyone else has similar experience.

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EMS
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Re: Riding Question

Post by EMS »

You need to address the steering neck connection/tightening. It is a little complex to elaborate. it is a common issue
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Re: Riding Question

Post by dohc24 »

The front forks are weaker on the 79's. A fork brace would be a simple bolt on solution.
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Re: Riding Question

Post by steve murdoch icoa #5322 »

Many things can contribute to a front end wobble.
Worn front tire, improper tire air pressure, worn swingarm bearings?

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Re: Riding Question

Post by Louis »

I would check and replace if you still have the plastic swing arm bushings.

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Re: Riding Question

Post by Larry Zimmer »

Louis wrote:
Fri Mar 12, 2021 7:41 am
I would check and replace if you still have the plastic swing arm bushings.
And, install taper bearings in the front.
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Watchfuleye
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Re: Riding Question

Post by Watchfuleye »

Thanks everyone for the prompt responses.

I will make a thorough check on all of the above.

I know for a fact that the swinging arm bushings are the plastic ones.


Cheers

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EMS
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Re: Riding Question

Post by EMS »

I think Mike Nixon addressed that very issue with a write-up in his "Motorcycle Project" web-site. I don't have a link right now, but I remember I did the steering neck bearing adjustment a few years ago and it solved the problem.
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jt
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Re: Riding Question

Post by jt »

Think this the link mention above.

https://www.motorcycleproject.com/text/shucking.html
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Watchfuleye
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Re: Riding Question

Post by Watchfuleye »

Thanks very much Gentlemen

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Re: Riding Question

Post by Dynamohum »

EMS is on point. My 82 never had the problem but tightening the neck bearings on my early 79 solved it. Although I had a fork brace, it didn’t seem to have any effect on the wobble.

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Re: Riding Question

Post by Michael Vidovic »

I had a fork brace on my 80 and it was a disaster. Stopping at traffic lights I would wait for the forks to come back up to ride height. Removed the brace and universe rebalanced. Just letting you know to be careful where you get the brace from. My bike came with it.
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daves79x
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Re: Riding Question

Post by daves79x »

Forget the use of fork braces, there is no quantifiable evidence they do any good on any year CBX, except make your wallet lighter. The stock plastic bushings get a bad rap. There is nothing wrong with the vast majority of them. And they are certainly better than brass bushings that are not honed to the correct clearance.

As others have said, check for proper tire pressures and wear, properly rebuilt forks with the correct amount of oil, and most certainly the steering bearings need serviced/replaced.

Crappy rear shocks can cause this too.

Dave

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Re: Riding Question

Post by AshishNJ »

I have those fancy fork braces on mine and I felt absolutely no difference in riding. I admit I bought them just for looks. I don’t have a wobble issue but adding a brace won’t do $***
1979 CBX (faster Red)
1981 CBX Streetfighter
2017 Aprilia Tuono.
Past rides : FZ1, BMWS100rr,S1000r,k1300S,YAMA RD350,Enfield 350

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