1982 Ski-Doo Shop Manual, Page 290Get this manual
SECTION 04 ELECTRICAL SUB-SECTION 07 (TESTING PROCEDURE)
2Low speed charging coil
1) Disconnect wire connectors from C.D.Ielectronic box harness to engine2) At the magneto harness, connect tester test lead to: 454,464: RDBK wire 277, 377, 503: BK wire and connect tester test lead to blackred wire(TYPICAL)
(TYPICAl)
test lead
Set tester and dial as follows: Switch position LOW Dial
Engine type 277,377,454, 464,503