1981 Ski-Doo Shop Manual Supplement, Page 9Get this manual
SECTION 02 SUB-SECTION 03-03, (IGNITION TIMING)
1981 IGNITION TIMING SPECIFICATIONS
ENGIN TYPE IGNITION TY PE DIR ECT EA SUREMENT INDIRECT EASUREMENT EDGE GAP
5-8 mm (0.197-0.315") 8-12 mm (.315-.472")
Breaker point Breaker point
3.98 mm 0.25 (.157" .010)
N.A2.60 mm 0.25 (,102" .010)
N.A2 .52 mm 0.25 (0.099" 0.010) 2.07 mm 0.25 (.081" .010) 2.52 mm 0.25 (0.099" .010) 2 .52 mm 0.25 (0.099" .010) 2.07 mm 0.25 (,081" 0.10)