2011 Polaris Ranger RZR ATV Service Manual, Page 112Get this manual

2011 Polaris Ranger RZR ATV Service Manual, Page 112

ENGINE Excessive Smoke and Carbon Buildup Excessive piston-to-cylinder clearance Wet sumping due to over-full crankcase Worn
Radiator is missing its internal diverter plate not allowing coolant to flow through entire radiator Low Compression Cylinder
head gasket leak No valve clearance (cam wear) Cylinder or piston worn Piston rings worn, leaking, broken, or sticking Bent
valve or stuck valve Valve spring broken or weak Valve not seating properly(bent or carbon accumulated on sealing surface)
Rocker arm sticking Backfiring Fouled spark plug or incorrect plug or plug gap Exhaust system air leaks Exhaust system air
leaks Valve sticking Ignition system faulty: Spark plug cap crackedbroken Ignition coil faulty Ignition or kill switch circuit
faulty Poor connections in ignition system Ignition timing incorrect Sheared flywheel key Temperature Too Low Thermostat