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    Help with 1988 40hp mariner

    I took the boat out with the motor I just purchased for the first time today. I ran it for about one hour and everything was great. All of a sudden the motor bogged down and I slowed to an idle speed. It would stay running at idle but if I tried to give it more gas it would just sputter and...
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    buying a used motor

    I am looking at a 1988 Mariner 40 hp. The engine looks very clean. I can't see any obvious problems with the motor. I asked the guy at the shop to do a compression test on the motor and he said both cylinders were 140 psi. Is that good? The only thing that concernes me a little is the motor...
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    which lower unit

    I have a 1967 Johnson 40 hp motor that I bought. The lower unit has water getting into it and I need to replace the seals. A guy at the boat shop I saw about an unrelated problem said the lower unit on the motor looked smaller than it should and it had maybe been switched out by the previous...
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    water in lower unit

    I bought a 1967 johnson seahorse model RDS 23. I had water in the lower unit. I read how to check what was leaking by submerging the lower unit and using a bike pump. The only air I saw was commig out at the top of the propler. The problem is i don't believe the lower unit on the motor is the...
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