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Jan 23rd, 2013
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Mercury 200efi hesitating #12483902
10/30/17 04:53 AM
10/30/17 04:53 AM
Joined: Dec 2013
Posts: 284
Eagle Mountain
E
E-bright Offline OP
Angler
E-bright  Offline OP
Angler
E

Joined: Dec 2013
Posts: 284
Eagle Mountain
2001 merc efi is hesitating and will run on high rpms. Is it time for a new fuel filter?

Re: Mercury 200efi hesitating [Re: E-bright] #12483979
10/30/17 06:54 AM
10/30/17 06:54 AM
Joined: Nov 2002
Posts: 3,738
Yantis, TX
Gamblinman Offline
TFF Team Angler
Gamblinman  Offline
TFF Team Angler

Joined: Nov 2002
Posts: 3,738
Yantis, TX
Possibly. When was the last time it was changed? When was the last time that you replaced all the fuel lines and primer bulb?

With todays ethanol laced fuels, all these items become regular maintenance items. Fuel filter/separator annually. Fuel lines and primer bulb every 2 years, at a minimum.

Re: Mercury 200efi hesitating [Re: E-bright] #12484198
10/30/17 02:37 PM
10/30/17 02:37 PM
Joined: Jul 2012
Posts: 1,246
Hill Country
B
boocat Offline
Extreme Angler
boocat  Offline
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Joined: Jul 2012
Posts: 1,246
Hill Country
Mine started doing that. I changed the motor mounted filter and added a racor between the bulb and tank. The fuel in the bowl of the stock filter looked kinda bad when I poured it in a clear glass, have not had it back out yet to see if it worked.
https://www.westmarine.com/buy/racor--10...964?recordNum=1

Re: Mercury 200efi hesitating [Re: E-bright] #12485911
10/31/17 05:13 PM
10/31/17 05:13 PM
Joined: May 2003
Posts: 11,494
Littlefield Tx & Lake A. H. US...
gary purdy Offline
TFF Guru
gary purdy  Offline
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Joined: May 2003
Posts: 11,494
Littlefield Tx & Lake A. H. US...
First sign of restricted fuel is surging. I would lean more towards old or bad fuel. We always see some problems when the fuel supply is changing from one season to another. You could have gotten a big dose of ethanol. Had a boat this time last year that the fuel tested 35%. Was doing the same hesitation and would finally get up on plane and run fair.

Last edited by gary purdy; 11/01/17 01:45 PM.

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
Re: Mercury 200efi hesitating [Re: E-bright] #12486055
10/31/17 06:47 PM
10/31/17 06:47 PM
Joined: Nov 2014
Posts: 6,588
Red Oak, Galveston, and Pagosa...
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SteezMacQueen Online happy
TFF Celebrity
SteezMacQueen  Online Happy
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Joined: Nov 2014
Posts: 6,588
Red Oak, Galveston, and Pagosa...
Injectors need cleaning, or plugs need changing....or both.


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