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    Suzuki DF140 Fuel pump problems

    I recently purchased a boat powered by 2004 Suzuki DF140. After a few weeks the engine started surging at higher rpms. After researching I decided to target the VST. So, I pulled the intake manifold and removed the VST. Fuel in it was clean. I checked and cleaned the needle valve, checked the...
  2. M

    Mercury 1988 175 hp Black Max overheating.

    Re: Mercury 1988 175 hp Black Max overheating.
  3. M

    Mercury 1988 175 hp Black Max overheating.

    Re: Mercury 1988 175 hp Black Max overheating.
  4. M

    Mercury 1988 175 hp Black Max overheating.

    My 88' model 175hp Merc overheats at mid to high speeds. It does not overheat in neutral at high rpm's. That leads me to believe it is a turbulence/cavitation issue. I have lowered the motor as low as I can with the jack plate that is installed. Still, the cavitation plate is well above the...
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