rpm surge with no motor change

oogaboga

Petty Officer 3rd Class
Joined
Jul 3, 2003
Messages
82
Ive got 1990/150hp us marine force motor,while running wot the rpm needle will advance and then drop off then go back to normal rpm ,but the engine never speeds up or down ,is my gauge going bad. :confused:
 

eurolarva

Rear Admiral
Joined
Jun 24, 2003
Messages
4,182
Re: rpm surge with no motor change

either the guage or the rectifier is going bad. Check the wires to make sure they arent corroded.
 
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