2004 Polaris Sportsman 600/700 Service Manual, Page 105Get this manual
ENGINE TROUBLESHOOTING, CONT Piston FailureScoring
Valve slicking Air leaks in intake Lean condition
Lack of lubrication Dirt entering engine through cracks
in air filter or ducts Engine oil dirty or contam inated
COOLING SYSTEM TROUBLESHOOTING
Overheating
Excessive Smoke and Carbon Buildup
Excessive piston-Ie-cylinder clearance Wet sumping
Worn rings, piston, or cylinder
Low coolant level
Air in cooling system Wrong typemix of coolant
Faulty pressure cap or system leaks
Worn valve guides or seals
Restricted breather
Restricted system (mud or debris in radiator fins causing restriction to