2001 Ski-Doo Factory Shop Manual Volume One, Page 231Get this manual
Section 06 ELECTRICAL Subsection 02 (IGNITION TIMING)
IGNITION TIMING
TWIN CYLINDER RER CDI SYSTEM
S-Series and Skandic LT If for any reason, ignition timing accuracy is suspected, it can be verified as follows1 2
Verifying Magneto Flywheel Timing Mark Position