1999-2004 Suzuki King Quad LT-300 300F ATV Factory Service Manual, Page 262Get this manual
SERVICING INFORMATION
Complaint Engine is noisy
Symptom and possible causes Excessive valve chatter 1Excessive valve clearance2Weak or broken valve spring 3Worn rocker arm or rocker arm shaftNoise seems to come from the piston 1Worn piston2Worn cylinder3Carbon build-up in combustion chamber4Worn piston pin or piston pin bore5Worn piston ring or ring grooveNoise seems to come from the cam chain 1Stretched cam chain 2Worn cam chain sprocket3Improperly working cam chain tensionerNoise seems to come from the clutch 1Worn crankshaft spline2Worn inner race spline3Worn countershaft spline4Worn clutch hub spline5 Worn clutch plate teeth 6Distorted clutch plate7Weak clutch damperNoise seems to come from the crankshaft 1Rattling bearing 2Worn or burnt crank pin bearing3Excessive thrust clearanceNoise seems to come from the transmission 1Worn or rubbing gear2Worn countershaft spline3Worn driveshaft spline4Worn or rubbing primary gear5Worn bearing 6Worn bushing Noise seems to come from sub-transmission 1Worn gears or shafts2Damage bearingsbushingNoise seems to come from secondary bevel gear and rear final drivenshaft1Worn or damage drive and driven bevel gears2Excessive backlash3Improper tooth contact4Damage bearing5 Worn or rubbing gears6Worn countershaft spline7Worn driveshaft spline8Final drivenshaft thrust clearnce too large