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2005 40hp E40DPLSOR Loses RPM and Dies

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  • 2005 40hp E40DPLSOR Loses RPM and Dies

    Help Please.

    Pulled boat after 4 months of storage. Hooked up hose and it fired right up. Ran it for about 5 minutes and the alarm went off indicating "no oil" so I immediately shut it down.

    After checking oil level, winterizing and several other attempts the alarm kept coming on. Took it to dealer and $750 later I have a new oil pump.

    Took it out for a run and it went about half a mile and began loosing RPM's then suddenly died. Waited a few minutes and it would start and run about the same distance and die. No alarms.

    Took it back to dealer and he claims he can not find anything wrong. He said he checked the fuel pressure and it was fine. To it on another run, same situation.

    So I have done some research and read about ethanol fuel line issues. I have now replaced fuel line from tank to motor. Replaced fuel water separator filter, Dumped fuel tank and refilled. Replaced filter on motor also. None of the filters showed any trash or water. Went out and ran it again and same situation except won't restart.

    Pulled spark plug wire at this time and got good spark. So back to the house I went.

    Next I checked the VSP filter and it also was clean. I need another one now and can not find one online. The fuel pump has 12 volts to it but no ground. I pulled the VSP pump and hooked it up w jumper wires directly to battery and it runs. I don't know what could be keeping it from ground. Is this something the computer does for safety reasons?
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