Main Menu
Newest Members
Highball Outfitters, Bradshaw williams, SAvoltage, Sanders, soccernut
108248 Registered Users
Top Posters
TexDawg 88909
hopalong 78895
Pilothawk 76461
John175® 67869
JDavis7873® 67390
FattyMcButterpants 60885
Derek 🐝 60490
Tritonman 58053
LoneStarSon® 54528
SkeeterRonnie 53419
Forum Stats
108248 Members
60 Forums
864030 Topics
12308767 Posts

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

Registered: 12/05/13
Posts: 260
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
TFF Team Angler

Registered: 11/26/02
Posts: 3491
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.

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

Registered: 07/30/12
Posts: 1091
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 Offline
TFF Guru

Registered: 05/24/03
Posts: 11442
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 Celebrity

Registered: 11/02/14
Posts: 5679
Loc: Red Oak, Galveston, and Pagosa...
Injectors need cleaning, or plugs need changing....or both.
Eat. Sleep. Fish.


© 1998-2018 OUTDOOR SITES NETWORK all rights reserved USA and Worldwide