1994 Johnson Evinrude "ER" 90 LV 120 thru 140, 185 thru 225, 250, 300 Service Repair Manual P/N 500612, Page 352Get this manual
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Cleaning and Inspection
armature for grounding by using test light or meterInspect armature insulation for indications of overheating and damaged windingsClean off any deposits of carbon or fore