2000 Polaris Indy 500 / 600 snowmobile service manual, Page 206Get this manual
CLUTCHES Clutch System Troubleshooting SYMPTOMS Engine RPM below specified operating range, although engine is properly tuned PROBABLE CAUSE a) Wrong or broken drive clutch spring b) Drive clutch shift weight too heavy c) Driven clutch spring broken or installed in wrong helix location d) Drive belt too long e) Improper driven clutch setup REMEDY
a) Replace with recommended spring b) Install correct shift weight kit to match engine application c) Replace spring; refer to proper installation location d) Install new belt andor adjust belt tension e) Install correct parts andor ad just to match engine application and ma chine use
Erratic engine operating RPM during acceleration or load variations
Drive clutch binding or driven clutch malfunction Converter sheaves greasy; belt slippage