raptor 660 help keeps going through clutches!!! PLEASE HELP!!!! - Yamaha Raptor Forum
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post #1 of 12 (permalink) Old 01-09-2017, 09:42 AM Thread Starter
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raptor 660 help keeps going through clutches!!! PLEASE HELP!!!!

So i bought a 01 raptor 660 on craigslist but was told before driving there that it was an 02, if i knew it was an 01 i would have never bought it... It goes through clutch kits i know they are put in right but every time i take one ride it starts slipping and then its out...I don't know what to do it has a brand new clutch cable and and every time i changed out the clutch i put new oil in it. It does have a chipped first gear, which most 01 660 raptors do. But i have been to so many different places to see if they knew what is wrong with it and they just say that it needs a new clutch and i'm tired of putting money into it i just want to know what needs done if anyone can help at all it would be greatly appreciated!!!!!
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post #2 of 12 (permalink) Old 01-09-2017, 12:33 PM
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Whats your basket look like? if the fingers look like saw blades your just putting aluminum into your motor oil every time you change gears. They sell billet hardened baskets. If you have a chipped gear your just asking for trouble and fixing your problem with a band-aid. If your really sick of putting in it sell or trade it for something else and then fix all the trades problems. Not to sound like a dick but that's reality.

Lets get some photos of the parts 1st. You might not have clutch adjusted right either, are you putting in cheap tusk kits, EBC or OEM clutches. Using stock springs, or mixing Barnett springs with something else? I
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post #3 of 12 (permalink) Old 01-09-2017, 01:19 PM
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Are you soaking the fibers prior to install?
Did you clean up your basket?
Are you using wet clutch safe (JASO ma) oil?

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post #4 of 12 (permalink) Old 01-09-2017, 01:45 PM Thread Starter
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This isn't a great picture but it's only one I have but it seems to be in okay shake to me I know I have to fix 1st gear but I feel as thought it may just be worth it to purchase a different engine off an 02 raptor
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post #5 of 12 (permalink) Old 01-09-2017, 02:12 PM
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"It goes thru clutches". Does that mean it wore the friction material, or it slips?

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post #6 of 12 (permalink) Old 01-09-2017, 06:27 PM
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Sounds to me like you are using oil that isn't designed for wet clutches, you said you change the oil everytime. What oil are you using...........


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post #7 of 12 (permalink) Old 01-10-2017, 09:20 AM Thread Starter
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I'm using Yamalube wet clutch oil
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post #8 of 12 (permalink) Old 01-10-2017, 09:21 AM Thread Starter
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Yes when I take them off the clutch plates are almost burnt looking
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post #9 of 12 (permalink) Old 01-10-2017, 10:02 AM
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did you replace the disks also or fibers only? burnt house smell = done for. Are your pressure plates worn? my KFX450R had the hub plate and pressure plate worn badly so if they are you you keep putting a new clutch fibers in theres too much slop and it will just wear out.

I only use rotella oil and only even ripped one clutch out but it was 8 years old. are you springs shot? do you know how to adjust and work on a bike properly? Still didn't answer if the fingers have groves like teeth or not.

Might be time take real photos which i know ever phone in america can do that and show up. I can tell you whats junk instantly...a new clutch is just not fibers and a cable. It should cost you $300-$400 if done right on a 15 year old machine

2005 KFX700 good bit of mods
2001 Raptor 660R too many mods
1987 YZ250 with Eric Gorr motor and every mod out there
1986 Tecate 3 resto mod build
Bits of a TRX250r is like to sell

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post #10 of 12 (permalink) Old 01-10-2017, 10:14 AM
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http://www.ebay.com/itm/Engine-Clutc...hYb~bM&vxp=mtr

This can not be worn on the surface that rests on the fibers..if it is worn or grooved you need to throw it away and buy a new one.

http://www.ebay.com/itm/2005-Yamaha-...JYCWMP&vxp=mtr
Your clutch hub also can ont be worn there the fibers rest, it if it worn or groved throw it away because the tolerances are done for. If you see / feel not smooth edges where the disks and figers bash its time for a new hub.


http://www.ebay.com/itm/Yamaha-Rapto...ZYcsvK&vxp=mtr

Your baskets fingers need to be smooth also. if they are looking like saw teeth then you need to file them down pallel to the figners above or buy a new billet basket.

Most times slipping and burned up clutch fibers are due to the inner hub and pressure plate being worn out. put in new fibers with old springs, and metal plates your not gonna last long. Put in cheap Chinese fibers are a few rides your done.

Most times a clutch is only going to last 1-3 years max. Everything needs adjusted correctly, not slipping your clutch all the time...if you do not know how to use a clutch put in a yz426 rekluse and enjoy semi auto!

2005 KFX700 good bit of mods
2001 Raptor 660R too many mods
1987 YZ250 with Eric Gorr motor and every mod out there
1986 Tecate 3 resto mod build
Bits of a TRX250r is like to sell
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