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350 mag problems

Old 06-03-2007, 10:40 PM
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Join Date: May 2007
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Default 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?
ddsmithjr is offline  
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Old 06-03-2007, 11:40 PM
Join Date: Apr 2006
Location: Grand Lake (E-Dock Junior Varsity)
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what happens when you try to start it? is it turning over?
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Old 06-04-2007, 10:15 AM
Join Date: Jan 2004
Location: San Diego, California
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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
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Old 06-04-2007, 11:26 AM
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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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