Polaris 2001 High-Performance Snowmobile Service Manual (PN 9916690), Page 334Get this manual
REAR SUSPENSIONTRACKTRACTION Troubleshooting
Problem: Suspension Bottoms Increase shock compression damping Increase spring preload Refill with heavier oil Install firmer spring
Suspension stays compressed misses bumps
Reduce shock rebound damping
Refill with lighter oil
Yes Suspension kicks back Is full travel used? No