2002 Ski-Doo Shop Manual Volume Two, Page 201Get this manual
Section 06 ELECTRICAL Subsection 04 (TESTING PROCEDURE)
Multiple Problems As matter of fact, more that one component can be defectiveAs result, if the problem remains although part was replaced, start over the whole verification from the beginning in order to identify the other defective component
DESS Switch
Tether Cord Switch Unplug 4-DB housing connected to main wiring harnessCheck using multimeter by connecting probes to BLACKGREEN and BLACKWHITE wiresThe multimeter should indicate closed circuit (0in operating position and open circuit (0.L M) in off position1 2
1SPARKING
During this operation, it is important to use the snowmobile spark plug and not new oneBring the plug in contact with the engineIf no spark is produced, replace the spark plug with new one and do the test again