Main Menu
Newest Members
BambulanceMan, BayouBassCat, Jaypak, cubanfisherman, fruitpieisgoodeatin
106351 Registered Users
Top Posters
TexDawg 86912
hopalong 78788
Pilothawk 75551
JDavis7873® 67385
John175 ® 65718
FattyMcButterpants 60793
Derek 🐝 58852
Tritonman 57703
LoneStarSon® 53695
SkeeterRonnie 53099
Forum Stats
106351 Members
61 Forums
861778 Topics
12248805 Posts

Max Online: 36273 @ 01/23/13 02:34 PM
Topic Options
#12483902 - 10/29/17 11:53 PM Mercury 200efi hesitating
E-bright Online   content

Registered: 12/05/13
Posts: 233
Loc: Eagle Mountain
2001 merc efi is hesitating and will run on high rpms. Is it time for a new fuel filter?

#12483979 - 10/30/17 01:54 AM Re: Mercury 200efi hesitating [Re: E-bright]
Gamblinman Online   content
Extreme Angler

Registered: 11/26/02
Posts: 2939
Loc: 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.
Texas Crappie Posse

#12484198 - 10/30/17 09:37 AM Re: Mercury 200efi hesitating [Re: E-bright]
boocat Offline
Pro Angler

Registered: 07/30/12
Posts: 985
Loc: 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.

#12485911 - 10/31/17 12:13 PM Re: Mercury 200efi hesitating [Re: E-bright]
gary purdy Online   content
TFF Guru

Registered: 05/24/03
Posts: 11203
Loc: 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.

Edited by gary purdy (11/01/17 08:45 AM)
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

#12486055 - 10/31/17 01:47 PM Re: Mercury 200efi hesitating [Re: E-bright]
SteezMacQueen Offline
TFF Team Angler

Registered: 11/02/14
Posts: 4447
Loc: Red Oak, Galveston, and Pagosa...
Injectors need cleaning, or plugs need changing....or both.
RIP little Nitro


© 1998-2017 OUTDOOR SITES NETWORK all rights reserved USA and Worldwide