2007-2009 Kawasaki KFX50 service manual, Page 39Get this manual
1GENERAL INFORMATION POOR PERFORMANCE (AT HIGH SPEED) InspectionAdjustment Symptom Probable Cause
Check ignition timing
Correct timing Check valve clearance
Incorrect timing
Faulty CDI unit Faulty pulser coil
Correctly adjusted
Incorrectly adjusted
Improperly adjusted valve clearance Worn valve seat