2009-2010 Polaris RZR Factory Service Manual, Page 347Get this manual
ELECTRICAL NOTE: Note the alignment marks on both ends of the starter motor casingThese marks must align during reassembly3Remove the front bracket assembly and the rear bracket assemblyRemove the shims from the armature shaft and inspect the O-rings located on the armature housing2Measure resistance between insulated brush and starter housingReading should be infinite (OL)Inspect insulation on brush wires for damage and repair or replace as necessary
NOTE: The shims reassemblywill be replaced during
Slide positive brush springs to the side, pull brushes out of their guides and remove brush plateSlide brush end frame off end of starter