texasfishingforum.com logo
Main Menu
Advertisement
Affiliates
Advertisement
Newest Members
RealBigfoot, Bassplay3474, Triton022, Spark1946, cmbash
119606 Registered Users
Top Posters(All Time)
TexDawg 124,605
hopalong 121,182
Bigbob_FTW 104,349
Bob Davis 95,971
John175☮ 86,136
Pilothawk 83,922
Mark Perry 74,867
Derek 🐝 68,498
JDavis7873� 67,416
Forum Statistics
Forums59
Topics1,057,308
Posts14,282,497
Members144,606
Most Online39,925
Dec 30th, 2023
Print Thread
Mercury EFI 200 #11624991 05/25/16 01:39 PM
Joined: Apr 2013
Posts: 195
T
The Lab Offline OP
Outdoorsman
OP Offline
Outdoorsman
T
Joined: Apr 2013
Posts: 195
Hello, recently started having problems with my Mercury Efi 200. After the motor warms up it seems to start idling very very rough. It just started doing this. Any suggestions? Anyone know where to start so I can get it taken care of?


1996 Ranger 488VS Comanche with 1996 Mercury EFI 200.
Blue Rock Custom Tackle
http://www.bluerocktackle.com/
Re: Mercury EFI 200 [Re: The Lab] #11625220 05/25/16 02:54 PM
Joined: Apr 2013
Posts: 378
T
Todd Ivins Offline
Angler
Offline
Angler
T
Joined: Apr 2013
Posts: 378
Ethanol problems most likely. gas lines et al need to be examined too. I gather its a 96 model?


"My Dad taught me how fish relate to structure....he left out how women relate to fishing."
Re: Mercury EFI 200 [Re: The Lab] #11625510 05/25/16 04:41 PM
Joined: Aug 2006
Posts: 7,186
steve@S2Marine Offline
TFF Celebrity
Offline
TFF Celebrity
Joined: Aug 2006
Posts: 7,186
check your spark plugs too


S2 Marine
714 S. Main
Quitman, Tx. 75783
www.s2marine.com
s2marinesales@gmail.com
Blazer Boats, Excel Boats, Sun Chaser Pontoons, Thor boats, Legend Craft Boats




Re: Mercury EFI 200 [Re: The Lab] #11625798 05/25/16 06:18 PM
Joined: May 2003
Posts: 11,586
gary purdy Offline
TFF Guru
Offline
TFF Guru
Joined: May 2003
Posts: 11,586
Check the temp sender wire`s connection`s. Brown/white stripe top port cylinder head.


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 EFI 200 [Re: The Lab] #11631640 05/28/16 05:50 AM
Joined: Dec 2012
Posts: 366
Okyakfishing Offline
Angler
Offline
Angler
Joined: Dec 2012
Posts: 366
My 200 EFI did the same thing and it was the idle screw was loose and then it actually fell out. Mechanic found it laying inside the motor. Replaced and problem went away.

Previous Thread
Index
Next Thread

© 1998-2022 OUTDOOR SITES NETWORK all rights reserved USA and Worldwide
Powered by UBB.threads™ PHP Forum Software 7.7.3