"Ticking" Sensation While Coasting

 The other day I noticed that when I pull the clutch lever at highway
speeds (letting the motorcycle coast), there is kind of a "ticking"
sensation at maybe a few Hertz.

Also, if I pull in the clutch lever and roll the bike in a parking
lot, I can feel a bit of the same thing.

I get the feeling (but I can't prove) that it has something to do with
the driven sprocket pulling the chain around the drive sprocket.

Is this plausible, that it is some sort of a chain settling issue?

I can of course jack up the bike and inspect for any bearing issues,
but I don't think that is the issue.

Any thoughts?

DFC

 
As your sprockets wear, the leading edge of the front sprocket teeth
and the trailing edge of the rear sprocket teeth wear off first and
the chain no longer follows the controlled path that the sprockets
dictated when new.

The rollers begin to encounter the sprocket teeth at a higher and
higher point, and that's what makes the clunk-clunk-clunk noise.

Your front sprocket would wear out at three times the rate that the
rear sprocket wears, except for the fact that an original equipment
front sprocket will usually be made of a harder steel.

It's a lot easier to inspect the rear sprocket teeth for asymetry.

The sprocket will gradually come to resemble a circular saw blade.

 
It could be the chain, but you would likely hear that under light load
with the clutch out if that was it.  Mor likely it is becaus when you
pull in the lever the cluth plates are able to rattle around in their
basket.  When you let the clutch out they are pressed together.

 

Standard chain/sprocket noise. Don't worry about it.


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chateau dot murray at idnet dot com

 totallydeadmailbox@yahoo.co.uk says...

Wouldn't hurt to jack it up and do a thorough job of lubing the chain
though.