2002 Ski-Doo Shop Manual Volume One, Page 257Get this manual
Section 06 ELECTRICAL Subsection 02 (IGNITION TIMING)
If the red fin aligns with the fan cowl timing mark, timing is correctIf not the case, check for proper flywheel, trigger coil position or MPEMThe RER ignition system is not adjustableOnly trigger coil air gap can be verifiedRefer to CDI SYSTEM
TWIN CYLINDER RER CDI SYSTEM
Skandic LT If for any reason, ignition timing accuracy is suspected, it can be verified as follows
Verifying Magneto Flywheel Timing Mark Position