1986 Ski-Doo Factory Shop Manual, Page 391Get this manual
Section 04 ELECTRICAL Sub-section 06 (TESTING PROCEDURE)
2Low speed charging coil
11 Disconnect wire connectors from C.D,1electronic box harness to engine,
3Lighting coil
,} Disconnect wiring harness junction block at engine
21 At the magneto harness, connect tester test lead
to: Black Wire and connect tester test lead to black! red wire(TYPICAL!
21 Connect tester test lead to yellowblack wire and connect test lead to yellow wire
3) Set tester and dial as follows:
ENGINE TYPE 253,377,447462,467,503532,537
4) Crank engine
SWITCH posmON
lest lead
a! Indicator lamp lights: Lighting coil output is up to specificationsRepeat test at least three (3) times to verify reading and consistencyb) Indicator lamp does not light: Lighting coil is faulty,