2003 Polaris Sportsman 600, 2002-2003 Polaris Sportsman 700 Service Manual, Page 158Get this manual
TROUBLESHOOTING
Situation
Engine RPM below specified operating range although engine is properly tuned
Probable Cause
-Wrong or broken drive clutch spring-Drive clutch shift weight too heavy-Driven clutch spring broken or installed wrong
-Replace with recommended spring-Install correct shift weight kit to match engine application-Replace spring; refer to proper installation location
Erratic engine -Drive clutch bindingoperating RPM during acceleration or load variations-Belt worn unevenlythinburnt spots