Ignition System Troubleshooting - Polaris Sportsman 400 Service Manual

ELECTRICAL

IGNITION SYSTEM TROUBLESHOOTING

No Spark, Weak or Intermittent Spark
SSpark plug gap incorrect
SFouled spark plug
SFaulty spark plug cap or poor connection to high tension lead
SRelated wiring loose, disconnected, shorted, or corroded
SEngine Stop switch or ignition switch faulty
SETC switch misadjusted or faulty
STerminal board or connections wet, corroded
SPoor ignition coil ground (e.g. coil mount loose or corroded)
SFaulty stator (measure resistance of all ignition related windings)
SIncorrect wiring (inspect color coding in connectors etc)
SFaulty ignition coil winding (measure resistance of primary and secondary)
SWorn magneto (RH) end Crankshaft bearings
SSheared flywheel key
SFlywheel loose or damaged
STrigger coil air gap too wide (where applicable) - should be .016-.040" (.4-1.0 mm)
SExcessive crankshaft runout on magneto (RH) end - should not exceed .0024"
SFaulty CDI module
10.10
- projex@inbox.lv -