1999 Ski-Doo Factory Shop Manual Volume Two, Page 278Get this manual
Section 06 ELECTRICAL Subsection 05 (ELECTRIC STARTER)
CLEANING AND INSPECTION CLEANING-
CAUTION
Armature starter yoke ass'y and drive unit assembly must not be immersed in cleaning solventClean brushes and holder with clean cloth soaked in solventBrushes must be dried thoroughly with clean clothBlow brush holder clean using compressed airF01H0RA
1Commutator undercut 0.20 mm (.008 in)
WARNING
Always wear safety goggles when using compressed airRemove dirt, oil or grease from commutator using clean cloth soaked in suitable solventDry well using clean, dry clothClean engine starter gear teeth and drive unit (clutch)NOTE: Bushings must not be cleaned with grease dissolving agentsImmerse all metal components in cleaning solutionDry using clean, dry cloth