2001 Polaris Sportsman 400-500 DUSE and H.O. Service Manual, Page 342Get this manual
ELECTRICAL
IGNITION SYSTEM
Whenever troubleshooting an electrical problem you should first check all terminal connections to be sure they are clean and tightAlso be sure that colors match when wires are connectedUse the following pages as guide for troubleshootingThe resistance values are also given on the specification pages
Condition:
No Spark or intermittent spark Replace Spark Plug
Disconnect the black wire at the CDI module to isolate the ignition from the kill systemDoes it have spark?
-Test the ignition switch, engine stop switch, and speed limiter circuit for shorts to ground-Check connectors for moisture, wire color matching or corrosion
Disconnect the exciter coil and pulse coil connector from the CDI moduleMeasure the resistance of the exciter coil and pulse coil (where applicable)Refer to the exploded view on page 10.7 or the wiring schematic for meter connections and specificationsCompare results to the specifications on the exploded viewsAre all within specifications?