1999 Yamaha 150 V Max running hot.

ADedeluk

Cadet
Joined
May 25, 2011
Messages
10
I have a 1999 Yamaha V Max P150TLRX and here is my problem.

I was out running my boat at high speeds and then when I was idling in a no wake zone my over temp and buzzer went off. So I shout down the motor and took off the engine cover and felt the cylinder heads and the three starboard cylinders were hot but the port side cylinder were just warm. I have since replaced the impeller and both thermostats and still runs hot. Any imput would be great.
 

99yam40

Fleet Admiral
Joined
Sep 7, 2008
Messages
8,880
Re: 1999 Yamaha 150 V Max running hot.

PRV stuck open would be my 1st thought
 
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