2002 Ski-Doo Shop Manual Volume One, Page 256Get this manual
Section 06 ELECTRICAL Subsection 02 (IGNITION TIMING)
Check if red fin aligns with mark on fan cowl1 2
1Connect timing light pick-up to the spark plug leadUse digital induction type tachometer (PN 529 014 500)
F01B1GA
A05E0TA
TACHOMETER (PN 529 014 500)
1Fan cowl timing mark 2Red fin
If marks do not align, there is something wrong with fan mountingCheck Woodruff key and fanCAUTION: Always check the timing with stroboscopic timing light at 3500 RPM after the marks have been checked
Connect tachometer wire to spark plug wire or aim tachometer toward spark plug wire without using any connection wire