1983 Ski-Doo Shop Manual, Page 217Get this manual
SECTION 04 ELECTRICAL SUB-SECTION 05 (ELECTRIC STARTER)
Test for ground circuit In the armature uSing growler test probes Check between armature core and the commutator bars If growler lamp turns on, bars are grounded
Field windings and brushes
Test the field winding for open circuit uSing growler test probes Place one test probe on the negative brush and the other test probe on the yoke If growler lamp does not turn on, the field winding has an open -circuit The yoke has to be repaired or replaced