I have a 1998 Yamaha Grizzly 600 4x4, it is not transfering but about 50% of the power to the wheels in 2 or 4 wheel drive. I have pulled the cover and the belt is 1 1/4 inches wide and looks good. it also meets the width from factory specs. So I am left scratching my head with this one. I was sure it would be the drive belt.

Can anyone help with this?

 

WHAT I DO IS DRIVE IT WITH THE COVER OFF SEE IF THE PRIMARY+SECONDARY MOVE CORRECTLY+RIDE THE BELT UP WITH OUT BACKING OFF UNDER ACCELERATION,BE CAREFUL,KEEP YOUR LEG FAR AWAY+WEAR SAFETY EQUIPTMENT.TRY NOT TO GET THINGS DIRTY.I WOULD FIRST SEE IF THERE IS ANY CONTAMINATES.

 

check your primary to see if there is enough grease on the rollers because if it has slung the grease out you will not get proper clutch action and therfore slippage.

 

i was a yamaha technician and have see this before, it will probably be the "sprag type" clutch in behind the primary, remove primary, a tin cover behind that, then remove the cover primary shaft comes though and you will find the "sprag type clutch" as yamaha calls it. last time i did one could not buy the clutch ears seperate had to buy whole unit and was about 350 if memory serves me. hope that helps ya.

 

hey i just joined because i saw a tech answering here. i have a 2000 grizzly 600 4x4 thats making a scrubbing sound from the right side at the clutch . the atv runs great no problems other than sounds bad ,how do i fix before something major tares up

 

oh yeh can i fix it myself with repairmanual or is this a proffesional job