2001 Polaris SLH, Virage PWC Factory Service Manual, Page 58Get this manual
Maintenance General Troubleshooting The followi ng information is provided to help you identify possible causes for conditionssymptoms listedAlways verify tune-up adjustments and all related basic maintenance has been performedThese items are randomly listed, and are not necessarily in order of most common occurrence
Lean Condition
Symptoms: Hard starting; bogging; hesitationbackfire; surging; detonation; engine noise; low power; spark plug light colored or erodedengine runs hot; high or unstable idle; piston failure; application of choke improves conditionStalling (may restart immediately or soon afterward); high speed surging; high speed or sharp turns makes condition worse (may hesitate or stall only in turns) Too lean at full throttle, turning high speed adjuster screw out improves condition or has no affectFuel level low or fuel contaminated Restricted fuel filter, fuel pump, or fuel shut-off valve Water in fuel valve, pump, or lines Water present in fuel system Water in carb fuel chambers between diaphragm, jet block and jets