Over charging?

muskyjim

Seaman Apprentice
Joined
Mar 12, 2007
Messages
43
My 1979 70hp Johnson Sea Horse charges at 12 to 14 at idle or very low speeds. At full speed it is charging at 17.
Another on-line mechanic said, that there is no voltage regulator on this motor. It has a diode that does nothing with the electricity. They said I probably just need to replace the battery. The battery still takes and holds a charge, it cranks the motor just fine.
Second opinions?
muskyjim
 
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