Snowmobile World banner

1 - 5 of 5 Posts

·
Registered
Joined
·
9 Posts
Discussion Starter #1
My Brother has a 98 Frmula III 700 and the sled constantly whines (like a supercharger) at high RPM's. Any ideas? Could it be the crank?
 
A

·
Guest
Joined
·
0 Posts
I could be mistaken but it sounds like a bearing failing.  I hope I am wrong.  $$  
 
 

·
Registered
Joined
·
625 Posts
My 98 FIII 600 used to do something like you describe, mine would "squeal" under acceleration, and at sustained high trail speeds. After some investigation I found a few things, but what fixed the problem was clutches out of alignment. I was trying to set it with a straightedge and a ruler.....big mistake, I bought one of those aluminim ones made specifically for my sled for $20 from SLP and voila noise gone. I will never go without the proper clutch alignment too again.
 

·
Registered
Joined
·
2,422 Posts
ZMachMan gave me a good piece of advice on bearing failure.
Start your sled, then shut it off and listen carefully for a spinning noise, if you hear it, it is your PTO bearing spinning in the case
 
1 - 5 of 5 Posts
Top