2003 Polaris Frontier Owners Manual - Page 127

Engine Troubleshooting TROUBLESHOOTING CAUTION: All engine service and repair should be performed by a qualified Polaris dealer with training in EFI engines. Problem Erratic engine operating RPM during acceleration or load variations Probable Cause Drive clutch binding Solution -Disassemble drive clutch to inspect shift weights for wear and free operation. SEE YOUR DEALER. -Clean and polish stationary shaft hub. -Replace ramp buttons and rollers. SEE YOUR DEALER. -Inspect movable sheaves for excessive bushing clearance and replace if necessary. SEE YOUR DEALER. -Replace drive belt. -SEE YOUR DEALER. -Replace drive belt. -Adjust alignment offset. -Inspect and adjust or replace. SEE YOUR DEALER. -Shift out of neutral. -Belt twisted, spring broken, weights stuck, lubricated. SEE YOUR DEALER. -Foreign object caught or Hi-fax melted to track clips due to lack of lubrication. -Machine may be frozen to ground. Track may be iced up. -Chain is loose or broken, chain tightener is loose. SEE YOUR DEALER. Driven clutch malfunction Harsh drive clutch engagement Drive belt turns over Drive belt worn or too narrow Excessive belt/ sheave clearance Wrong belt for application Clutch alignment out of spec Engine mount broken or loose Machine fails to move Transmission in neutral Clutch jammed Track jammed Chaincase sprocket or chain jammed or broken 125