2005 Ski-Doo Tundra, Skandic, Expedition Shop Manual, Page 467Get this manual
Section 08 ELECTRICAL Subsection 05 (ELECTRIC STARTER)
Test for Ground Circuit in the Armature Use growler test probesCheck between armature core and the commutator barsIf growler lamp turns on, bars are groundedIf so, replace armatureTest the Armature for Open Circuit Use growler test probesPlace one test probe on commutator bar and the other test probe on the neighboring barRepeat this operation for all bars, moving one test probe at timeIf the growler lamp does not turn on, the armature circuit between these bars is openedThe armature should be replaced or repaired; open circuits most often occur at the commutator riser where coils are soldered(Burnt commutator bars are usually an indication of an open-circuit armature coil
Field Windings and Brushes
443 and 552 Engines Test the Field Winding for Open Circuit Use growler test probesPlace one test probe on the negative brush and the other test probe on the yokeIf growler lamp does not turn on, the field winding has an open-circuitThe yoke has to be repaired or replacedA09E08A