WHAT BELT SHOULD I BE USING FOR VMAX4

[WALLY]

I have installed a Yamaha belt part # 8BU-17641-01 in my 92 vmax-4 and it squeals like a stuck pig and the sled does not what to stand still. Is this the right belt? I have a kimpex KP144-5248 that does not squeal but this belt has a bad spot. Thanks in advance

[racer7x]

Thats the correct belt, sound like you center to center distance if off...
Center to center distance is 363.5 mm to 366.5 mm or 14.3 inches to 14.4 inches...

[WALLY]

i will check the center to center , thanks

[racer7x]

No problem, thats why this site exists, to help other Vmax-4 owners. !!!!! :D

[RDL 93 V-MAX4]

These Yamaha guys here on the site are the best. You can count on help for your sled even when there's no snow on the ground LOL...:rockon:

[YAMMIEGOD 3:16]

GET YOUR CENTER TO CENTER CORRECT, THAT 8BU-00 YAMAHA BELT WILL WORK AWSOME. !! 3:16 (tony)

[SRV540]

14.3 - 14.4in is the center to center on the 800's!

[mark the shark]

For 750's:
Engine idle speed = 1400-1600 RPM
Clutch engagement speed = 3600RPM
Drive belt height above the secondary sheave when engine is stopped = .08-.12 in.
Clutch center-to-center distance 14.3-14.4 in.
Clutch sheave offset from primary to secondary clutch = .57-.69 in.
New belt width = 1.36 in. Belt wear limit = 1.3 in.

The Kimpex belt is probably stretched and rides looser in the clutches. They're not made to handle the power of the 4 cylinder engines. It may also be narrower from wear. You may have always had a center-to-center, offset, or engine idle speed problem that's showing up now with the new Yamaha belt that's to spec.
Shark

[vmax4rules]

For 750's, Drive belt height above the secondary sheave when engine is stopped = .08-.12 in. Shark

Make sure this is within spec if not it can cause the belt to squeal,
IMHO I would check and adjust all the specs listed on Sharks above post.