1989 Ski-Doo Repair Manual, Page 404Get this manual
Section 04 ELECTRICAL Sub-section 06 (TESTING PROCEDURE)
IGNITION TYPE
ENGINE TYPE
TEST WIRE HARNESS
Vehicle wiring
253, 377, -16, 503, 036, 583,
a) Connect the test wire harness to the checker aligning the arrow marks
Breakcrless magneto
AOOO 004 021
t r: IlifFIgnition coil