1987 Johnson Charging Problem

fergdav

Recruit
Joined
May 1, 2007
Messages
5
Hello,

My 1987 Johnson 140 hp runs like a bat out of hell, however, this season the battery stopped charging. I replaced the rectifier/regulator and it worked for a day then nothing! What Am I doing wrong? What would keep blowing the rectifier?
:confused::mad:
 

nymack66

Petty Officer 1st Class
Joined
Aug 5, 2009
Messages
356
Re: 1987 Johnson Charging Problem

First and foremost remove the battery and have it load tested this will give you a clear idea if the battery is defective (not accepting a charge) which in turn will overheat and destroy the rectifier.
The second possibility can be your stator , look up under the flywheel with a flash light you are looking for any indication of a brownish stuff or melted varnish seeping off the stator ..
 
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