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What ya think? Clutch problems..

This is a discussion on What ya think? Clutch problems.. within the Yamaha YFM660R Raptor (2001-2005) forums, part of the Performance /Technical category; Aight, I've been messing with the Raptor again. Got it started, but now as soon as you put it in gear, it jumps forward and ...


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Old 07-24-2009, 03:05 PM   #1
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sad What ya think? Clutch problems..

Aight, I've been messing with the Raptor again. Got it started, but now as soon as you put it in gear, it jumps forward and dies, just like if you weren't using the clutch at all.

I messed with the adjustment, but it still does the same thing.

Think the guy I bought it off of could have put the clutch arm in wrong? Would that cause this? It makes sense, and I know he said he installed a new clutch right before selling it.

Any thoughts or opinions are welcomed..
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Old 07-24-2009, 03:09 PM   #2
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Pull the lever and watch to see if the clutch release arm on the case moves. May be as simple as a bad cable.
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Old 07-24-2009, 03:22 PM   #3
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Yea it releases fine, the cable is perfect.
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Old 07-24-2009, 05:53 PM   #4
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your quad has to be at runing temp to adjust the clutch
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Old 07-25-2009, 12:28 AM   #5
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ok, yes, I know that.


Any thoughts about the arm being installed incorrectly?
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Old 07-25-2009, 06:17 AM   #6
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How long did it sit? Clutch plates could be stuck togeather.

I don't think you can put the arm in wrong... I haven't pulled my 660 clutch cover off yet but all the bikes I've ever worked on street and dirt, if the arm isn't in right the cover won't go on all the way...

Also if the arm isn't in right the cable wouldn't be under spring tension... The tension comes from the clutch springs. I asume you have had a clutch pack out and know what it looks like and you know what springs I'm talking about and how the arm connects to the puller in the middle of the clutch pack...

Plates do get sticky with dry tacky oil after the sit for a long time.
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Old 07-25-2009, 10:48 AM   #7
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idiot could vave left the shift ball out or something like that id get the repair manual if youve never done it before and just start from square one
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Old 07-27-2009, 09:16 AM   #8
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There is no ball in a raptor, there is a pancake bearing and a machine washer that could be missing.

I would pop the cover off and grab a manual and make sure everything is in its proper place.
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Old 07-27-2009, 03:18 PM   #9
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The cover is off and everything looks good, but there's really no way to know if the arm was in correctly, so I was wondering if that could have been the problem..
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Old 07-27-2009, 03:32 PM   #10
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My YFZ would do this until it was fully warmed up, then it wouldn't do it. I messed with it for ever and couldn't get it to stop, finally I swapped out the clutch for the YZ 9 disc and problem was gone. Turns out a couple of the fibers were stuck to the steels and that's what was causing it. Can you adjust the clutch to the point that it would be barely engaging on a normal set up and see if it will go in gear?
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Old 07-28-2009, 08:18 AM   #11
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Quote: Originally Posted by screamin96 View Post
The cover is off and everything looks good, but there's really no way to know if the arm was in correctly, so I was wondering if that could have been the problem..
If you clutch lever is under tension ie. you let it go and it snaps back out, the arm is in right. Pull the steels and friction plates out and see if any are stuck togeather. A clutch is engaged when you're not pulling in the lever. When you squeeze your lever is when you release the clutch. If your plates are stuck togeather even though they aren't under the pressure of your springs and pressure plate it will "jump forward and die".

Do you know how a clutch works? I'm not asking to be an ass, some people don't know. If you understand how it works it makes it easier to understand how a couple sticky plates could be ruining your day...
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Old 07-28-2009, 01:24 PM   #12
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Sounds like dry plates sticking together. Ask the guy you bought it from if he soaked the plates in oil before he installed them.
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Old 07-28-2009, 08:28 PM   #13
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Screamin make sure to lightly file any grooves or burrs on your clutch basket that might catch the clutch plates. Only takes a few strokes being aluminum. This solved a similiar problem on my rappy.
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Old 07-28-2009, 08:55 PM   #14
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ok mike, if it is grabbing you have one of three problems.

1 clutch not adjusted properly
2 clutch is not new and actually blown out or the basket is fubarred
3 clutch is dry, but i highly doubt this is the case.

take the cable off of the clutch rod and see how far you have to spin it before it starts disengaging the clutch, if it is close to where the cable is then it is a bad clutch, if not readjust it, worst case screnario for adjust is you just take out the small screw and put the rod out and spin it to the right place and put back together. it should be a simple fix.
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Old 08-03-2009, 02:16 PM   #15
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Yea, that's the thing, he mentioned something about putting a new clutch in it, but he didn't soak the plates first. I was thinking ehh, what are the chances of it really sticking that bad? lmao

But I'm starting to think that may be it, since the arm seems to have been put in correctly.

Anywayyy, I've been waiting on the clutch cover gasket and it just came today. I'll reassemble everything (plates are soaking now) in a day or two and let ya know the outcome!
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Old 08-13-2009, 02:00 PM   #16
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So what was the out come? I'm interested...
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Old 08-17-2009, 03:17 PM   #17
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Some things came up so I haven't had a chance to put it all back together yet...I'll keep you posted..

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