1991 Johnson/Evinrude Models "EI" 40 thru 55 Service Manual, Page 276Get this manual
Charging System Check Chart Where to Look
Battery
Procedure
Reference
All Steps See Pages 8-4 thru 8-7
1Battery defective or worn out 2Low electrolyte level
3Terminal connections loose or corroded 4Excessive electrical load
1Check condition and charge 2Add water and recharge
3Clean and tighten 4Evaluate accessory loads
1Connections loose or
corroded 2Stator leads shorted or grounded 3Circuit wiring grounded