Clunking From Rear Wheel

[WildGoose]

right, this one has baffled me a bit, although the fix should be simple, its totally eluded me

the rear wheel is clunking when turned by hand when the bike is up on a paddock stand

a sound that i would associate with a chain not meeting the rear sprocket quite online, but it isnt occuring every time a tooth engages with the chain, tis every 8 or so

the wheel is aligned with the same marks on both sides of the swingarm, i have tried adjusting it a few turns either way on both sides, but it doesnt seem to sort the noise

interestingly the wheel only makes the noise when the axle nut is done up, which makes it all the more frustrating trying to cancel out the errors by adjusting the chain tensioners, as you have to make the adjustment then do the axle nut back up to hear if its making the noise


seems too simple, but ive tried everything i can think of, and now need advice

thanks for any points
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So in other words, he stopped you for being flagrantly in posession of a motorcycle in direct contravention of the Hippies, Darkies and People Whose Face I Don't Like The Look of (Police Powers) Act. 1976

[finpos]

You don't metion the age/milage/model of the bike..

My guess would be that the cush drive rubbers are past their best. See if you can bridge the gap between the wheel and the rear sprocket carrier with your thumb while making it clunk, though obviously that's a bit difficult if you need to whizz the wheel around to make it happen.

Probably also worth while looking for any play in the wheel bearings.

finpos.

[WildGoose]

96 yamaha trx 850, 30,000 miles
____________________
So in other words, he stopped you for being flagrantly in posession of a motorcycle in direct contravention of the Hippies, Darkies and People Whose Face I Don't Like The Look of (Police Powers) Act. 1976

[finpos]

10 year old bike with that milage - probably worth taking the wheel of to check the rubbers.

The good news is that if they are a bit on the tired side, you can pack them out with strips of something rubbery. re-assemble/re-fit the wheel and re-test for your clunking. Personally, I'd never ride the thing another 20,000 mile with it in a bodged state like that

finpos.

[BanditsHigh]

This might be a really stupid suggestion ... but have you checked your wheel/sprocket carrier bearings?

Also another cause of knocking could be a slightly warped disc hitting a set of loose brake pads ... every time the disc dips it'll hit the pads and cause a noise ... this is quite unlikely from what you've described.

Wheel bearings or sprocket bearing starting to go sounds the most likely.

All the best ... Barry

[NSR Mick]

[Vin]

Don't shout at me but my bike did this....scared the life out of me! It turned out that the way I had positioned the stand meant the sprocket nuts were hitting it and making a clunking sound.