1974 Johnson 40 HP Outboard Motors Service manual, Page 77Get this manual
bRemove three nuts and four screws attaching slarter bracket and mounting bracket to crankcaseSee Figure 7-7Lift starter and bracket off bracket studscRemove two thru- bolts from starter motorSeparate motor from bracket Rff"ERENC PICTURE
DISASSEMBLY OF STARTER
a Remove drive end head, taking are to avoid damaging bearing in head on teeth 01' armature pin ionbRemove commutator head by tapping lightly with rubber malletRemove brushes and spring from holder Lift armature from frame and field assemblySee Figure 7-5c To disassemble starter drive, remove nut at top of drive housingNote the relative positions of the parts while disassembling to aid in reassembly laterSee Figure 7-8Figure 7-9Checking Armature on Growler
CLEANING, INSPECTION, AND REPAIR
aInspect the brushesreplace If one-half worn, damaged, or cracked Replace brush springs if weakbClean commutator with Grade 00 sandpaperIf commutator surface is unevenly worn pitted, turn on latheRemove any trace of oil from commutatorcCheck the armature on growler for shorted turns See Figure 7-9 Check armature for grounding by using test light or meterSee Figure 7-10