2002 Ski-Doo Shop Manual Volume One, Page 259Get this manual
Section 06 ELECTRICAL Subsection 02 (IGNITION TIMING)
F01B1GA
TACHOMETER (PN 529 014 500)
To check the ignition timing, refer to illustration and proceed as follows:
WARNING
Place ski tips against wall, raise rear of vehicle on stand, so that track does not contact the groundDo not allow anyone in front of or behind the vehicle while engine is runningKeep clear of track and do not wear loose clothing which can get caught in moving parts1Connect the timing light pick-up to spark plug cableNOTE: To avoid an incorrect reading due to parallax, view the magneto flywheel and the crankcase timing marks in straight line2Connect tachometer wire to spark plug wire or aim tachometer toward spark plug wire without using any connection wire3Start the engine and raise the engine speed at least to 3500 RPM (3000 to 4000 RPM) while observing the timing marks, refer to illustrationThe magneto flywheel mark scribed previously and the crankcase arrow should be perfectly alignedIf the marks do not align, faulty trigger coil (check proper grounding of coil), faulty flywheel, faulty Woodruff key, misaligned (twisted) crankshaft or faulty CDI module could be the cause: substitute one part at time and recheck timing marks (check connectors condition prior to substituting any part)NOTE: Ignition timing may be verified when engine speed is anywhere within 30004000 RPMA03E1EA