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xs650 > > Motorcycle Systems > > Drive > > Clutch Clunk on Letting Out


Clutch Clunk on Letting Out
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XSAndy
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Joined: Jun 21, 2007
Posts: 37
Location: Sydney, Australia
PostPosted: June 23, 2007, 6:47 am    Post subject: Clutch Clunk on Letting Out
Well nows the chance for a newby to find out some answers Confused ! Have an 81 Special that works well until the clutch is quite hot. The clutch seems to drop the last little bit when letting it out. A real problem at low speeds in heavy traffic as I can just feel the chain stretching and the rear sprocket getting mashed. It doesn't seem to be a problem when giving it heaps of juice in a fast take off. The clutch is probably let out faster with this. No problem when the clutch is cold . Is this just clutch adjustment? I have had it open and checked meat on the plates with a micrometer. They are still inside spec. Any thoughts? Cheers
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xsjohn
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Joined: Jul 30, 2006
Posts: 5857
Location: North Carolina USSA
PostPosted: June 23, 2007, 7:02 am    Post subject: Re: Clutch Clunk on Letting Out
Low speeds in heavy traffic in the summer the thing is probably way to hot.........Find a infra red thermometer and see what the temps really are....Might find something like 275 degrees......Frying pan syndrome.....

A little clutch noise on these when they are hot may be common....Mine does it a bit sometimes in heavy traffic starting off........Never when it's cold.....

John
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Joseph
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Joined: May 22, 2007
Posts: 767
Location: NY
PostPosted: June 23, 2007, 7:12 am    Post subject: Re: Clutch Clunk on Letting Out
ya i have this on my 80 i couldnt have described it better feels lik the last bit of letting out on cluch it snaps the chain i thought it was because of loose chain but now i'm not sure.
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Joeymountain
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XSAndy
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Joined: Jun 21, 2007
Posts: 37
Location: Sydney, Australia
PostPosted: June 24, 2007, 5:18 pm    Post subject: Re: Clutch Clunk on Letting Out
Great feedback guys any thoughts on a solution?
The temp seems to get hot enough to create the problem after 5km riding in the middle of winter (Sydney) so I don't think it's just a heat problem. I'd call that pretty normal riding conditions. Kinda glad to hear I'm not alone with the trouble. I checked the chain Joseph and it seems to happen even when that has been tightened.
Kinda suggests that the plates are separating in a hurry once the pressure is released rather than gradually lettingg off the slack.
Cheers
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