Mercury Optimax stalling at high speed

wzrdsantana

Recruit
Joined
Apr 18, 2012
Messages
2
Hello,


Wondering if I could get some help with my Optimax. I have a 2004 Mercury Optimax 135 HP serial number OT834238.

The motor runs great at low speed but when I try and run it faster it stalls, but it usually starts right back up sometimes it

just turns over and I have to let it sit awhile and then it starts up again. I have replaced the hose and ball from the boat

to the motor, the water/fuel seperator, spark plugs but it still does the same thing
 

Faztbullet

Supreme Mariner
Joined
Mar 2, 2008
Messages
15,616
Re: Mercury Optimax stalling at high speed

Replace the mechanical fuel pupmp diaphram....
 
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