2001 Ski-Doo Factory Shop Manual Volume One, Page 236Get this manual
Section 06 ELECTRICAL Subsection 02 (IGNITION TIMING)
1Connect the timing light pick-up to spark plug cable and the power connections to the batteryNOTE: To avoid an incorrect reading due to parallax, view the magneto flywheel and the crankcase timing marks in straight line2Start the engine and raise the engine speed to 6000 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, move trigger coil accordinglyNOTE: Ignition timing have to be verified when engine speed is 6000 RPMA03E1EA