2010 Arctic Cat Prowler XT/XTX/XTZ ATV Service Manual, Page 32Get this manual
Problem: Engine lacks power Condition 1Valve clearance incorrect 2Valve springs weak 3Valve timing out of adjustment 4Piston ring(s)cylinder worn 5Valve seating poor 6Spark plug fouled 7Rocker armsshafts worn 8Spark plug gap incorrect 9Fuel injector obstructed 10Air cleaner element obstructed 11Engine oil overfilledcontaminated 12Intake manifold leaking air 13Cam chain worn Problem: Engine overheats Condition 1Carbon deposit (piston crown) excessive 2Oil low 3Octane lowgasoline poor 4Oil pump defective 5Oil circuit obstructed 6Intake manifold leaking air 7Coolant level low 8Fan malfunctioning 9Fan switch malfunctioning (700950) 10Thermostat stuckclosed 11Radiator hosescap damagedobstructed