simple rectifier question

dsweet2010

Cadet
Joined
Jul 30, 2017
Messages
16
I have a 1974 Johnson 70hp that I have restored and runs excellent! It is not charging that batteries however. I have discovered my red wire from the rectifier is completely disintegrated to nothing, and this it is bad according to multimeter test. It is a 3 wire rectifier, 2 yellows and a red wire. I do however have a new good 4 wire unit, 3 yellows and a red wire. Is it possible to use the 4 wire recifier on my outboard that only only a 3 wire receifier orginally? Thanks in advance!!
 
Last edited:

F_R

Supreme Mariner
Joined
Jul 7, 2006
Messages
28,195
Yes, just leave the 3rd yellow unused/not connected. Tape it up so it doesn't ground out on something.
 
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