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Old 04-08-2014, 09:07 PM
allenamy allenamy is offline
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Join Date: Apr 2014
Boat: 2001 Mastercraft 19 Skier 5.7litre Predator
Location: west
Posts: 1
fuel issues

boat struggling over 32 mph, starts right away, idles okay. Struggles out of the hole with full throttle. Have changed the inline fuel filter. Any suggestions before taking it in the mechanic.
Sounds like it is starving for fuel.
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Old 04-09-2014, 03:53 PM
curver900 curver900 is offline
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Join Date: Aug 2013
Boat: Mastercraft, prostar 2001 205v
Location: midwest
Posts: 329
year of boat? in tank fuel pump? if so those hoses inside can collapse, and the pumps have been known to be bad...
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Old 04-27-2014, 02:04 PM
bsloop bsloop is offline
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Join Date: Jan 2005
Boat: 91' MC 240sc
Location: Perry Lake, KS Lake of Ozarks
Posts: 560
I put a fuel pressure gauge from Jegs in line at the carb to see the pressure (thus drop).

many possibilities. old lines going bad, especially with ethanol fuel. Anti siphon valve (top of tank) or pickup in tank partially blocked; allowing sufficient flow until demand it too great.
Mechanical fuel pump getting weak.

BTW, this should have probably been in the Technical - Engine section......
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  #4  
Old 04-27-2014, 03:45 PM
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mikeg205 mikeg205 is offline
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Join Date: Aug 2011
Boat: 1995 Pro Star 205 5.7 Liter
Location: Plainfield - Joliet, IL
Posts: 10,734
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2001? if in tank fuel pump.. I bet fuel pump failing.. if inline fuel pump.. fuel pump screen could be clogged... or fuel pump dying..
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