1965 Evinrude 90 HP StarFlite Service Manual, PN 4206, Page 81Get this manual
CLEANING, INSPECTION, AND REPAIR THRUST NUT
! ASHER CUSHION
aInspect the brushes; replace if one-half worn damaged, or crackedReplace brush spring if weak: bClean commutator with Grade 00 sandpaperIf commutator surface is unevenly worn or pitted, turn on latheRemove any trace of oil from commutatorcCheck the armature on growler for shorted turnsSee Figure 7-8 Check armature for grounding by using test light or meterSee Figure 7-9Inspect armature insulation for indications of overheating or damaged windings Clean off any deposits of carbon or foreign matter which may contribute to later failure of the windings
CAP PINION t:3iCUSHION _CUSHION SPACER
SPR NG WASHERSLEEVE