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 Post subject: slow speed
PostPosted: Fri Mar 25, 2016 4:56 pm 
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Joined: Tue Jan 04, 2011 2:01 pm
Posts: 13
we have a 50 hp mercury and we can only get it to go 10 mph, even when you put the lever all the way down. any ideas what this might be.


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 Post subject: Re: slow speed
PostPosted: Fri Mar 25, 2016 7:09 pm 
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Joined: Tue Dec 08, 2015 7:15 pm
Posts: 185
Do you have a tach? Or, when you throttle up is the engine revving up like it is full throttle?


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 Post subject: Re: slow speed
PostPosted: Fri Mar 25, 2016 9:32 pm 
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Joined: Sun Oct 19, 2008 11:33 pm
Posts: 9300
if you running off a little six gallon fuel tank make sure the little vent screw is open.

if it has been sitting up for a long time without being ran you high speed carburetor

jets are probably plugged up. You maybe able top put a can of sea foam in the fuel tank

and run it a while may open it up. If not you will have to pull the carburetors and clean them.


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 Post subject: Re: slow speed
PostPosted: Sat Mar 26, 2016 5:30 pm 
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Joined: Tue Jan 04, 2011 2:01 pm
Posts: 13
thank you so much for the info.


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 Post subject: Re: slow speed
PostPosted: Sat Mar 26, 2016 6:52 pm 
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Joined: Tue Feb 03, 2015 10:46 am
Posts: 708
If u need a mechanic i have an excellent in baytown i can recommend he is located on north main at ward rd in baytown

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Formally known as bigdaddy


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 Post subject: Re: slow speed
PostPosted: Mon Mar 28, 2016 9:01 am 
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Joined: Fri Jul 26, 2013 2:30 am
Posts: 437
Or they blew out the bushing in the prop


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 Post subject: Re: slow speed
PostPosted: Mon Mar 28, 2016 10:24 am 
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danieltx11 wrote:
Or they blew out the bushing in the prop


That could very well be also. If the engine ribs up high and you don't go

much over idle. you could pull the prop and try a spare ,

most of the time if you shine a flashlight in the hole in the prop where the

shaft goes through the splines will be all busted up not letting the boat

go much over idle. Then you will need to take it to a propeller repair shop

to have a new hub pressed into the prop. Prop services run to most

marine dealers and will pick the props up there in Tuesday and bring

back on Friday of same week.


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