2002 Ski-Doo Shop Manual Volume One, Page 262Get this manual
Section 06 ELECTRICAL Subsection 02 (IGNITION TIMING)
NOTE: Ignition timing have to be verified when engine speed is 6000 RPM
The ignition timing can be checked with either the engine hot or coldAlso, the ignition timing is to be checked at 3500 RPM with timing lightNOTE: Between 3000 and 4000 RPM, the spark advance does not changeSo when checking ignition timing at 3500 RPM, change in engine speed within 500 RPM will not affect the timing mark when checked with the timing light
Scribing Timing Mark
1Clean the area around the MAG spark plug, and remove it2Install the TDC gauge in the spark plug hole, (magneto side) and adjust as follows: aPosition the MAG piston at approximately TDCA03E1EA
CHECKING IGNITION TIMING 1Timing light pick-up on MAG side 2Crankcase arrow 3Magneto flywheel mark
3Install parts which were removed