1982 Ski-Doo Shop Manual, Page 262Get this manual
SECTION 04 ELECTRICAL SUB-SECTION 02 (IGNITION TIMING)
7Disconnect timing instrument wire from blue wire then reconnect it to the bluered wire (P.T.Oside) leading from engineRotate crankshaft until P.T.Oside piston approaches top dead centerAs soon as timing marks align, timing light should fluctuateIf necessary to adjust, proceed as followsIf timing is too early decrease breaker points gap toward lower limit, i.e 0.35 mm (0.016") then recheck timing If timing is too late increase breaker points gap toward upper limit, i.e0.40 mm (,016"), then recheck timing
3Rotate crankshaft until breaker points, visible through magneto ring opening, are fully openAdjust points setting to 0.35 mm 0.05 (,014" .002)) using feeler gauge and screwdriver, as illustratedRepeat procedure for other pointAdjust both side equallyToo early: Decrease points gap
NaTE: Breaker points gap can change upon tighteningAlways recheck after tightening