2001 Polaris Sportsman 400-500 DUSE and H.O. Service Manual, Page 43Get this manual
MAINTENANCE
THROTTLE CABLEELECTRONIC THROTTLE CONTROL (ETC SWITCH) ADJUSTMENT
1Slide boot off throttle cable adjuster and jam nut2Place shift selector in neutral and set parking brake3Start engine and set idle to specified RPM, then shut off engineNOTE: Be sure the engine is at operating temperatureSee Idle Speed Adjustment4Loosen lock nut on in-line cable adjuster (Ill1)5Turn adjuster until 116 to 18 freeplay is achieved at thumb lever(Ill2)While making adjustment, quickly actuate the thumb lever several times6Tighten lock nut securely and slide boot completely in place to ensure water-tight seal7Turn handlebars from left to right through the entire turning rangeIf idle speed increases, check for proper cable routingIf cable is routed properly and in good condition, repeat adjustment procedureIll1