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200 Optimax DFI 1998 surging

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  • 200 Optimax DFI 1998 surging

    Last week I took the boat (2001 Bass Cat P3) out and noticed while running up the lake it lost power and RPM’s. I then opened it up and the motor would only turn 4800 RPM’s. I took the boat to a local boat mechanic and he rebuilt the fuel pump and replaced the fuel bulb and the line from the bulb to the pump on the side of the motor. The boat now has the power back and will turn the correct RPM’s but is now surging badly. Should I be looking for a fuel issue or electrical? The boat mechanic is not sure what to do at this point. Any advice would be appreciated.