1986 Ski-Doo Factory Shop Manual, Page 390Get this manual
Section 04 ELECTRICAL Sub-section 06 (TESTING PROCEDURE)
41 Tum i.gnfljon key to ON position, disable emergency cut-out buttoncircuir and tether cut-out switch and then crank engine,
253,377,447,462,467,503,532,537,
COl SYSTEMS VERIFICATION
,High speed charging coil
1) Disconnect wire connectors from C,D,L electronic box harness at engine_
2) Connect tester lest lead to blackwhite wire and connect tester rest lead to blackred wire at the magneto harness_
(TYPICAL)
a) Indicator lamp lights: Coil output is up to specificationsRepeat test at leas[ three (3) times to verify reading and cheCk for consistencyb) Indicator lamp does not light: Coil output is below specificationsThis could be caused by faulty coil Or breaker points, Check breaker points condition and adjustment, and correct as necessaryRepeat testIf lamp still does not light the coil Is defective and should be replaced
2Lighting coils output (247 engine type)
NOTE: There are two independent coils; main (large) coil wires are yellow and yellowblack while brake light coif (small) wires are green and greenblst:k_