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#12375600 - 08/07/17 06:18 AM Help wont run over 1/2 speed?
hawghoover Offline
Pro Angler

Registered: 01/28/15
Posts: 610
Loc: Lewisville Tx
i bought a very clean 2008 pontoon with a 2008 Merc 2 stroke oil injected 50 hp motor.this boat has less than 30 operating hours.it sat a lot. it starts right up and runs great up to 1/2 speed and thats it just bogs down. only one time in 4 trips did it open up after i put sea foam and new plugs in it and new filter and gas line and bulb runs like new to 1/2 throttle beyond that it just bogs down.filter is still full of gas and pumping the ball makes no diff? any ideas? out of gear it will rev hi easy.


Edited by hawghoover (08/07/17 06:18 AM)

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#12375798 - 08/07/17 09:01 AM Re: Help wont run over 1/2 speed? [Re: hawghoover]
Capt Craig Offline
Extreme Angler

Registered: 08/25/09
Posts: 1602
Loc: Richland-Chambers
Take it to a certified mechanic.
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Capt. Craig Copeland
Licensed by the US Coast Guard

2013 Nautic Star 2110 Shallow Bay Boat
Humminbird HELIX 12 CHIRP MEGA SI GPS G2N
Nautic Star Boats Pro Staff (nauticstarboats.com)
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#12376049 - 08/07/17 11:46 AM Re: Help wont run over 1/2 speed? [Re: hawghoover]
HoustonCatfisher Offline
Outdoorsman

Registered: 01/31/14
Posts: 183
Loc: Houston, Texas
Sounds as if the fuel system needs attention. I would not use seafoam in this case.
_________________________
Licensed Texas freshwater fishing guide

http://houstoncatfish.webs.com

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#12376139 - 08/07/17 12:52 PM Re: Help wont run over 1/2 speed? [Re: hawghoover]
Huckleberry Offline
TFF Guru

Registered: 10/10/07
Posts: 17761
Loc: Lake Gaston, VA
Sell it and buy one of these

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#12376352 - 08/07/17 03:56 PM Re: Help wont run over 1/2 speed? [Re: hawghoover]
gary purdy Offline
TFF Guru

Registered: 05/24/03
Posts: 11441
Loc: Littlefield Tx & Lake A. H. US...
Has anyone checked the throttle linkage to see if it getting full throttle?
_________________________
The world will not be destroyed by those who do evil, but by those who watch them without doing anything. Remember what He has done and remember that He is not done yet!-- GOD IS GOOD

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#12377042 - 08/08/17 05:33 AM Re: Help wont run over 1/2 speed? [Re: gary purdy]
hawghoover Offline
Pro Angler

Registered: 01/28/15
Posts: 610
Loc: Lewisville Tx
yes it will run full throttle once in a while for about 15 sec then slow to 1/2
Originally Posted By: gary purdy
Has anyone checked the throttle linkage to see if it getting full throttle?

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#12379406 - 08/09/17 03:28 PM Re: Help wont run over 1/2 speed? [Re: hawghoover]
boatman025 Offline
Pro Angler

Registered: 07/16/10
Posts: 546
Loc: McKinney
Sound like need carbs rebuilt
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Hughes Marine Service
McKinney ,Texas

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