2003-2006 Kawasaki KFX400 service manual, Page 291Get this manual
ELECTRICAL SYSTEM
Measure the ignition coil primary peak voltage( 7-19) NOTE: The ignition coil peak voltage inspection method is applicable only with the multi circuit tester and the peak volt adaptor
Correct
Inspect the spark plug( 2-10) Correct Incorrect
Incorrect
Faulty spark plug Improper spark plug connection
Inspect the ignition coil( Correct