ELECTRICAL
10.12
IGNITION SYSTEM
TROUBLESHOOTING
No Spark, Weak, o r Intermittent Spark
GSpark plug gap incorrect
GFouled spark plug
GFaulty spark plug cap or poor
connection to high tension lead
GRelated wiring loose, disconnected,
shorted, or corroded
GEngine Stop switch or ignition switch
faulty
GETC switch misadjusted or faulty
GConnections wet, corroded
GPoorignitioncoilground (e.g.coilmount
loose or corroded)
GFaulty stator (measure resistance of all
ignition related windings)
GIncorrect wiring (inspect color coding in
connectors etc)
GFaulty ignition coil winding (measure
resistance of primary and
secondary)
GWorn magneto (RH) end Crankshaft
bearings
GSheared flywheel key
GFlywheel loose or damaged
GTrigger coil air gap too wide (where
applicable) - should be .016-.040″
(.4-1.0 mm)
GExcessive crankshaft runout on
magneto (RH) end - should not
exceed .0024″
GFaulty CDI module
NOTES:
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