1993-2000 Honda TRX300EX Service Manual, Page 196Get this manual
Troubleshooting 12Check for engine overheating- Not Overh eating
Possible Cause Overheating Excessive carbon buildup in combustion chamber Use of poor quality fuel Clutch slipping lean fuel mixture Wrong type of fuel
13.Accele rat or run at high speedEngine Knocks-
Worn piston and cylinder Wrong type of fuel Excessive carbon buildup in combustion chamber Ignition timing too advanced (Faulty ICM) Lean fuel mixture
Poor Performance Allow And Idle Speed
Possible Cause 1Check ignition timing and valve clearance Incorrect-
Correct
Improper valve clearance Improper ignition timing (Faulty ICM or ignition pulse generator)