1970 Johnson 115 HP Outboard Motor Service manual, Page 88Get this manual
7-8 Remove drive end head, taking care to avoid damaging bearing in head
dRemove commutator head by tapping lightly with rubber mallet Remove brus hes and pring from heide rLift armature from fram and fi eld assemblySee Figure 7-4
CLEANING, INSPECTION AND REPAIR
a Inspect the brushes; eplace if one-half worn, damaged, crackedReplace brush springs if weakFigur 7-5Starte Motor est
b Cl ean commut ator with Grade 00 sandpape rIf commutator urface commutator is unevenly worn pitted, turn onalathe Remove any trace of oil Irom
cCheck the armature on growl er for horted turnsSee Figure