1972 Ski-Doo Shop Manual, Page 221Get this manual
3-05-06 ELECTRIC STARTER
NOTE: Starter housing and commutator end bracket must adjoin at commutator end bracket nose and starter housing grooveFron't
8Insert the appropriate brushes into the brush holders and secure using screws and washersNOTE: On MAA starters, two (2) different sets of brushes are installedThe set with the L.H.Stab are for the ground holders, the set with the R.H.Stab, for the insulated holders (armature) (fig3-5-14)MAA