Clutch or Trans? -
Troubleshooting Having trouble with your bike? Common know issues or trobuleshooting questions here.

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post #1 of 2 (permalink) Old 11-08-2007, 07:22 PM Thread Starter
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Clutch or Trans?

I have a 1999 CBR F4 Red Bull Replica with 40G mileage. (I know the Red Bull is irrelevant but I am proud of it!) I posted a question in General Discussion about the clutch but I want to be sure the clutch is the problem before I start taking stuff apart.

About a week ago I did my first couple of burnouts (I know they're bad, but I didn't think a few would f**k it up. I was wrong.) As soon as I took off down the road, I popped the clutch to stand it up (like I always do-always works thanks to vortex) and the rpms just shot up to the limiter and the bike gave me nothing. It's like the motor is working real hard but not getting anything to the back tire.

Also, when the bike hits about 8-9 rpm the bike starts missing. (Same problem, lots of motor working, little or no power to the back tire.) Bike runs totally normal below 8 rpm, shifts normal and everything. Clutch is not that loose. Not a bad smell, but I have never smelled a bad one either.

All in all, I guess I need to know what this sounds like and what I need to mechanically check to be sure. As the great Dane Cook says, Dealerships "f**k you big time" on labor and I would like to avoid that if possible.

Thanks guys!
Diablo Runner is offline  
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post #2 of 2 (permalink) Old 11-08-2007, 07:54 PM
Knee Dragger
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after 40k miles if its the original clutch, yah that things prob toasted. its not real hard to change the clutch plates yourself. get a service manual online or buy the book and do it yourself. i think a full clutch kit steel and fiber plates is around 90 dollars usually. all u really gotta do is take your clutch cover off and then some bolts to take the clutch plates off, i think like 5 or so bolts with springs on em. its been awhile since ive done one but just make sure you use lock-tite on the clutch spring bolts and a torque wrench to get em to the proper setting and its not that hard of a job. takes me around an hour.
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