1990 Johnson Evinrude "ES" 9.9 thru 30 Service Manual, P/N 507871, Page 298Get this manual
Charging System Check Chart Where to Look Battery Cause 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
1Clean and tighten
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