2009 Polaris Scrambler 500 4x4 2x4 factory service manual, Page 230Get this manual
ELECTRICAL
IGNITION SYSTEM TESTING FLOW CHART
Whenever troubleshooting an electrical problem, 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 systemVerify the CDI has good ground (Brown) for operationDoes 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
Verify that 12 VDC power is getting to the CDI moduleRefer to the wiring schematic for meter connections and specificationsCompare results to the specifications on the exploded viewsAre all within specifications?