1971 100hp Johnson Not charging battery

deputy

Recruit
Joined
Sep 3, 2001
Messages
1
The moter runs great with a charged battery but will not charge battery. Battery is good. Put dead battery on, Jump started, won't run while connected to dead battery.
 

12Footer

Fleet Admiral
Joined
Mar 25, 2001
Messages
8,217
Re: 1971 100hp Johnson Not charging battery

I think the problem may be the battery. If it stalls out when you hook up the dead battery, it may be shorting the stator to ground (how most outboard kill switches operate). I may be totally off-base tho..
 
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