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  1. #1
    Join Date
    May 2007

    350 mag problems

    I recently purchased a 2000 chaparral 280 ssi with twin 350 mags/BIII's (140 hrs on engines).

    I was cruising along on my 2nd outing at about 3000 rpm when the Starboard Engine started sputtering and quit.

    I checked for fire and it appears that is not the problem.

    I removed a small plug on the fuel rail and had fuel there. I don't have a fuel pressure guage so I don't know how much pressure I have.

    Any Ideas or suggestion how to trouble shoot it?

  2. #2
    My Boats:
    24 Skater, 292 SR-1 Formula, 382 Fastech, 41 PC
    Join Date
    Apr 2006
    Grand Lake (E-Dock Junior Varsity)
    what happens when you try to start it? is it turning over?

  3. #3
    Join Date
    Jan 2004
    San Diego, California


    Usually these symptoms point to a fuel delivery problem. Change the fuel water seperators, clean the pump screens and try again. Just a note, especially if your a trailer boater, avoid buying fuel from in the water marinas, they tend to get a lot more water and debris in their tanks and that translates to fuel system problems, besides that the fuel cost is a lot higher!

    Ray @ Raylar

  4. #4
    Join Date
    May 2007
    The engine turns over fine. No hesitation at all.

    I trailer it and use a reputable fuel station. Additionally, the port engine is having no issues at all. I agree that everything points to a fuel problem. I'm hoping it's exactly what you've pointed to. I know if that i'll have spare filter's on the boat from now on if that is all that it is.

    I just closed on the thing friday so I'm taking it back to the dealer today. They sound like they are going to take care of it.

    Thanks for the replies.

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