1997 Ski-Doo Factory Shop Manual Volume Two, Page 230Get this manual
Section 05 ELECTRICAL Sub-Section 07 (TESTING PROCEDURE)
NIPPONDENSO CDI TRIGGER COIL SYSTEM TESTING
Applicable to 454, 494, 583 and 670 Engine Types NOTE: Ensure ignition cut-out switches are properly working and they are in the ON position prior to performing the following tests
Results:
aIndicator lamp lights: Trigger coil output is up to specificationsbIndicator lamp does not light: The problem is faulty trigger coil or bad grounding'
WARNING
IGNITION COIL OUTPUT
A paper clip of approximately 20 mm (34 in) will be used as test adapter for the following test1Install the test adapter to spark plug cable close to MAG side spark plug2Connect tester wires then set switch and dial as follows:
Tester wires Component wires Engine ground Test adapter (paper clip) spark plug cable LOW 45 Tester switch position Tester dial position