1994 Johnson/Evinrude "ER" 2 thru 8 outboards Service Manual, Page 253Get this manual
Charging System Check Chart Where to Look Cause Procedure
Battery
1Battery defective or worn out 2Low electrolyte level 3Terminal connections loose or corroded 4Excessive electrical load 1Connections loose or corroded 2Stator leads shorted or grounded 3Circuit wiring grounded 1Damaged stator windings 2Weak flywheel magnets 3Damaged stator leads 1Damaged wiring or diodes