93 yamaha 200hp oil tank overflowing

gossy

Cadet
Joined
Sep 29, 2017
Messages
6
hi there,
I have just installed a 93 200hp Yamaha to my boat and when key turned on the oil tank on the engine fills and overflows ! Have tested the tank level sensor and seems to be ok? Also the trim tilt indicator on the gauge is not working atm. Does this have anything to do with the oil tank sensor ? cheers
 

Mohawkmtrs

Chief Petty Officer
Joined
Jan 13, 2010
Messages
548
Had an '86 Yamaha 115 in with the same symptoms...check entire system out and it turned out to be a defective Oil Control Unit.
 
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