1985-1990 Suzuki LT50 Service Manual, Page 81Get this manual
SERVICING INFORMATION
ENGINE MAKES ABNORMAL NOISE
SymPtom
Possible cause
Noise pitch is raised generally in step with increasing engine speed
111 Too big clearance between piston
and cylinder
111 Rebare or replace121 131 141 151
Replace the piston
121 Piston rings too loose in place 131 Piston ring stiff with carbon141 Excessive wear in conrad big end151 ExceSSive weilr in conrod smilll
CleanReplaceReplace
Failed piston rings
171 Excessively worncrankshaft bearings181 Defective transmission gears191 Defective transmissIOn shaft
bearings
161 (71 Replace181 Replace191 ReplClce
4 ENGINE OVERHEATS