Clutch Problems

[Munno#37]

Ok my 04 yfz is being stupid and i need some help!! I changed the clutch cause it was sliping when it warmed up. So i replaced the clutch put it in right then it was good for about a ride and then it did it again im runing 20 50 yamaha lube so i switched to 15 50
and im gonna run the engine ice what else could it be and i took the clutch back out and looked at it and it was fine what could it be ????????????? Please help

[ftr76vetquad]

Munno Nick maybe?
u race the FTR i think, did u soak the clutch plates before u installed them????

[JOECASH]

never had any problems with mine yet,i installed a rekluse clutch kit super sweet set up for mx

[Munno#37]

Yes i soaked them what could it be ???

[Munno#37]

Yes its me nick munno i race ftr!! I liked the hole shot you pulled last race very nice!!!

[Jersey450R]

Originally posted by Munno#37
Ok my 04 yfz is being stupid and i need some help!! I changed the clutch cause it was sliping when it warmed up. So i replaced the clutch put it in right then it was good for about a ride and then it did it again im runing 20 50 yamaha lube so i switched to 15 50
and im gonna run the engine ice what else could it be and i took the clutch back out and looked at it and it was fine what could it be ????????????? Please help
Try some honda GN4
Or just buy a Honda. ;)

[intruder]

My son had the same problem I changed everything and still had the problem went through 4 clutches in a month. We finally figured out it was his left hand he was holding the clutch in just enough to let it slip a little. He said there was no way he was doing that. But once he took time to really pay attention to what he was doing his clutch has been fine. This 450 has so much power that if you take away the free play and the clutch slips just a bit you won't notice it and you'll be replacing plates after every ride. This may not be your problem but the only thing we replaced that worked was my son’s riding style. He rode the 450 for 8 months without a problem then all at once it started and like I said I replaced everything there was to replace and the same thing keep happening. It cost him three races and one race it cost him a top ten-year end finish in four stroke A GNCC.

[Munno#37]

yah its not my riding style cause i already thought of that but the clutch just slips after about 25 mins of riding it hard i changed it all and it still does it everythings perfect its just something else is up please keep me posted i am a the end of the rode!!!

[Aallron]

Replace the clutch springs.

[Munno#37]

I DID when i replaced the clutch any more ideas

[daddio]

do you have all stock parts in your clutch, or are you runnung aftermarket clutches, basket, pressure plate or drive hub???

[Munno#37]

stock everything except fibers steels and springs!!!

[daddio]

do you have excessive wear on the surfaces of the hub and pressure plate, where the friction plates ride?

[intruder]

Did you find anything else out? Is your clutch still giving you problems?

[Munno#37]

No i didnt figure it out im still stumped!!

[speedfreaksguy]

Check the pushrod. I had this problem with some YZ 250's and now I replace the pushrod every time I replace the clutches and no more problems. Have any of you tried switching to the YZ450 bike clutch setup? I am thinking about trying one next.

[yfz450rider29]

Kinda Confusing... First off i would make sure you have enough play in the perch. This might be it...... On my old banshee, i was running a CR style Perch....NOT A GOOD IDEA... it didnt have enough pull and i went though clutch after clutch. If you havent changed that and there is enough play i have no idea. Cuz it seems like you have everything else taken care of.

[ketchup]

What type of clutch did you replace it with? I've heard of alot of yfz's eating up aftermarket clutches very quickly. The best set up seems to be OEM or YZ.