johnson 150 fast strike rectifier

largemouth1959

Recruit
Joined
Jul 21, 2009
Messages
2
Is there away to tell if the rectifier is bad and the stater? Iam only getting 12.4 volts when running.
 

wilde1j

Vice Admiral
Joined
Apr 15, 2002
Messages
5,964
Re: johnson 150 fast strike rectifier

Measure AC voltage across the yellow pair to the regulator with engine at a fast idle. If, => 30 VAC, stator is working OK for charging and likely the rectifier is bad as long as all wiring is intact and terminations are tight and clean. If you don't get the voltage from the stator, it could be bad. You can verify by doing resistance checks covered in the shop manual.
 
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