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Join Date: October 4, 2002
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February 6, 2005, 05:32 PM

i'm lookin to change out my clutch in the near future, any recommendations? I ride street, some track, will not be racing this year.
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February 6, 2005, 05:51 PM

Why? What's wrong with it?


'08 MARRC Expert Racer of the Year
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February 6, 2005, 06:36 PM

32k plus miles, i was told i should change it out soon? not sure if thats f'real though? how do i know if its going bad?
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February 6, 2005, 07:00 PM

If you haven't noticed anything then it's fine. No slipping, no chatter, no grabbiness, no problem. Usually.

Pull the clutch cover and look at the fiber plates. No need to drain the oil, as long as it's on the sidestand the oil should drain away from the cover. Be careful and you won't need a need gasket.

The keystone shapes ought to have ~.25mm of material on each side, it won't look like much, but that's how they are. If a plate is completely flat and no 'keystones', then you need new fiber plates. With sort of mileage they shouldn't be worn down already.

The metal plates don't usually need replacing unless you've totally friend the clutch, to the point that the plates are warped. A little discoloration (burnt oil buildup) or bluing is no big deal that can be cleaned up with some fine sandpaper.


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February 6, 2005, 07:06 PM

i'll maybe check it out this weekend. i havent noticed any slipping, but hten again i really havent revved it up high since the last track day in october. anything i should look for? i know right now the clutch lever is alot more tense, and it grabs way high. if it does start slipping, how much life do u think a clutch would have left?
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February 6, 2005, 07:19 PM

If it does slip I suggest lightly sanding both sides of all plates to expose a fresh surface with no baked on oil. It should work fine after that. I have no idea how Yamaha clutches compare to Hondas, but unless you spend a ton of time at the drag strip or do serious horsepower mods then it should last the entire time you have the bike.


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February 6, 2005, 07:37 PM

hey Flip, listen to SVbadguy he knows his stuff.
he helped me last year with my bike and it was somehting not complicated and i was ready to take it ot te dealer.
thanks again SVbadguy


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February 7, 2005, 07:17 AM

thankx again for the tips travis.

Buell- Travis has helped me in the past, and is very knowledgable. Thanks for lookin out though.
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February 8, 2005, 10:59 PM

Quote:
Originally Posted by flipnR6
i'll maybe check it out this weekend. i havent noticed any slipping, but hten again i really havent revved it up high since the last track day in october. anything i should look for? i know right now the clutch lever is alot more tense, and it grabs way high. if it does start slipping, how much life do u think a clutch would have left?
Norman,
When is the last time you lubed or replaced your clutch cable?
Disconnect your clutch cable from the engine and see if it moves freely. If it doesn't move freely, it needs to be replaced. Be sure to set 5mm of clutch lever freeplay when you're finished.

With your bike in 2nd or 3rd gear (pick a gear that won't wheelie with your gearing), turning about 4K RPM and the clutch fully engaged, whack open the throttle. If the engine spins up faster than it should for your current road speed, then your clutch is slipping. I don't know how long a clutch will last when it is slipping. I wouldn't guess very long though due to the heat buildup glassing the metal plates.

p.s. You should use a little WD-40 on your shift key. It appears to be stuck too.


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BMW R1100s
(previous rides: '82 KTM250, '95 CBR600F3, '98 Buell S3T, 2000 Hayabusa, 2008 R1200R)

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