2007-2009 Kawasaki KFX50 service manual, Page 38Get this manual
1GENERAL INFORMATION POOR PERFORMANCE (ESPECIALLY AT IDLE AND LOW SPEEDS)
InspectionAdjustment
Symptom
Probable Cause
Check ignition timing
Correct timing Check carburetor air screw adjustment Correctly adjusted Check carburetor gasket for air leaks
Incorrect timing
Faulty CDI unit Faulty pulser coil