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Old 04-05-2009, 12:13 AM   #1
Join Date: Apr 2009
Posts: 1
Default Mercruiser 3.0 I/O

I have recently purchased a 1997 Maxum 1700 with the Mercruiser 3.0 in it. We have only had it on the lake a few times but I have noticed when I slowly accelerate or attempt to run at about half throttle it sputters and cuts out. The boat seems to run good at idle and at WOT, but just does run right at mid throttle. Anyone have any ideas?


Vest114 is offline   Reply With Quote
Old 04-06-2009, 04:11 PM   #2
Join Date: Jun 2008
Location: Fairchild AFB, WA (Spokane)
Posts: 54

I would certainly look at a carb rebuild. I had mine rebuilt, everything tightened that had come loose and changed the prop. Now it pulls a pretty mean holeshot and runs pretty smooth. Of course it's not a 5.0 MPI, nut it gets the job done.

SSgt Seth Allen
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Old 04-08-2009, 10:23 PM   #3
Lt. JG
Join Date: Feb 2009
Location: Portland, OR
Posts: 40

You might give it a tuneup including plugs and sparkplug wires. I bet it still has the original wires in it. I just replaced mine and the boat now fairly jumps onto a plane instead of plowing.
1996 Maxum 2700 SCR
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Old 04-11-2009, 02:41 PM   #4
Lt. Commander

Join Date: Oct 2008
Location: Oshkosh, Wisconsin
Posts: 176

Last summer I had my carb rebuilt on my old 94 and it made a huge difference.
2006 Maxum 2000 SR3
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Old 05-12-2009, 03:53 AM   #5
Join Date: Aug 2008
Location: West Fargo, ND
Posts: 14
Default Re: Mercruiser 3.0 I/O

our 03 sea ray has that motor and it does the same thing. We changed plugs, full service and it still does it. She will take a hell of a load and still get on plane pretty easily. I have asked dealers mechs about the problem and they seem to think it is isolated. I have a guy coming over this week to go thru my outboard and I will ask him.
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