texasfishingforum.com logo
Main Menu
Advertisement
Affiliates
Advertisement
Newest Members
Monty97, MiggyFishing, PierceBull12, Hawk1997, R.Tillman
109275 Registered Users
Top Posters(All Time)
TexDawg 90,110
hopalong 78,911
Pilothawk 77,533
John175® 69,827
JDavis7873® 67,393
Derek 🐝 61,674
Tritonman 58,395
LoneStarSon® 54,816
Mark Perry 54,790
facebook
Forum Statistics
Forums60
Topics777,135
Posts13,000,239
Members109,275
Most Online36,273
Jan 23rd, 2013
Print Thread
Mariner not idling #12333980
07/11/17 02:25 PM
07/11/17 02:25 PM
Joined: Mar 2011
Posts: 1,140
south side of Texoma
M
Michael.Beaty Offline OP
Extreme Angler
Michael.Beaty  Offline OP
Extreme Angler
M

Joined: Mar 2011
Posts: 1,140
south side of Texoma
I have a 1991 mariner 175 having a hard time idling thinking it's fuel pump. Motor will start and idke as long as I give it throttle on the hot foot but is idling way to high that way 2200rpm. When I let off the gas it acts like it's starving for fuel sputters and dies. So I ran all new fuel line new bulb new spark plugs new wires and ran a compression test "115" on all cylinders stillthe same problem. Could it be the fuel pump needs to be rebuilt? Also the stator is only 1year old. Also will bog down when first trying to get on plane for a second then it runs perfect to wot

Last edited by Michael.Beaty; 07/11/17 02:26 PM.
Re: Mariner not idling [Re: Michael.Beaty] #12334255
07/11/17 04:50 PM
07/11/17 04:50 PM
Joined: Nov 2006
Posts: 2,395
ft worth
T
TLW Online content
Extreme Angler
TLW  Online Content
Extreme Angler
T

Joined: Nov 2006
Posts: 2,395
ft worth
carb., efi?... start with mech pump rebuild.. that don't work move on ta carbs if it has 'em.. kits for both are cheap..ya haven't "adjusted" any of tha screws (linkage,stops etc.) have ya?

Last edited by TLW; 07/11/17 04:55 PM.
Re: Mariner not idling [Re: Michael.Beaty] #12334325
07/11/17 05:31 PM
07/11/17 05:31 PM
Joined: Apr 2004
Posts: 8,344
Rockwall
S
Stump jumper Online content
TFF Celebrity
Stump jumper  Online Content
TFF Celebrity
S

Joined: Apr 2004
Posts: 8,344
Rockwall
Sounds like you might have a seat backing out or a hole in a float. Hole in float will dump too much gas flooding a cylinder and causing the exact symptoms you have. Run that thing on the hose with the airbox cover off and see if you have excess fuel dumping out the front. I have had both happen on my 1985 carbed Merc 175.


2200 Bay Champ/200 Mercury Optimax
2017 Tundra TSS 4x4 Crewmax 5.7L
Re: Mariner not idling [Re: Michael.Beaty] #12334372
07/11/17 06:02 PM
07/11/17 06:02 PM
Joined: Mar 2011
Posts: 1,140
south side of Texoma
M
Michael.Beaty Offline OP
Extreme Angler
Michael.Beaty  Offline OP
Extreme Angler
M

Joined: Mar 2011
Posts: 1,140
south side of Texoma
Carved and I haven't messed with any of the setting screws

Re: Mariner not idling [Re: Michael.Beaty] #12334373
07/11/17 06:02 PM
07/11/17 06:02 PM
Joined: Mar 2011
Posts: 1,140
south side of Texoma
M
Michael.Beaty Offline OP
Extreme Angler
Michael.Beaty  Offline OP
Extreme Angler
M

Joined: Mar 2011
Posts: 1,140
south side of Texoma
Carbed

Re: Mariner not idling [Re: Michael.Beaty] #12334478
07/11/17 07:21 PM
07/11/17 07:21 PM
Joined: Nov 2006
Posts: 2,395
ft worth
T
TLW Online content
Extreme Angler
TLW  Online Content
Extreme Angler
T

Joined: Nov 2006
Posts: 2,395
ft worth
sounds more like a "loadin' up" and not starvin'.... try pump rebuild first.. may or may not be it but a '91 is due anyway.. if a "true" '91 it will have wmh carbs on it that will have accelerator pumps.. only had pumps 'bout a year and a half then tha pumps went away.. more trouble than they were worth.. that could be tha problem but hard ta say being ona computer.. most that still use 'em disable/gut tha pumps and fill in tha hole with epoxy... but that might not be tha problem.. i have (a coupla times), like stump says, also seen tha needle seats back out of tha wmh's also... other than tha pumps they are jus like any of 'em and need a goin' thru ever so often..

Re: Mariner not idling [Re: Michael.Beaty] #12334494
07/11/17 07:35 PM
07/11/17 07:35 PM
Joined: May 2003
Posts: 11,496
Littlefield Tx & Lake A. H. US...
gary purdy Online content
TFF Guru
gary purdy  Online Content
TFF Guru

Joined: May 2003
Posts: 11,496
Littlefield Tx & Lake A. H. US...
Idel stabilizer may have gone bad or carb leaking fuel into the throat because of the float or dirty needle and seat.


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: Mariner not idling [Re: Michael.Beaty] #12334530
07/11/17 07:56 PM
07/11/17 07:56 PM
Joined: Mar 2011
Posts: 1,140
south side of Texoma
M
Michael.Beaty Offline OP
Extreme Angler
Michael.Beaty  Offline OP
Extreme Angler
M

Joined: Mar 2011
Posts: 1,140
south side of Texoma
Thanks for the reply as y'all have said a carb is leaking so I will look into new float needle and seat for it

Re: Mariner not idling [Re: Michael.Beaty] #12334990
07/12/17 01:56 AM
07/12/17 01:56 AM
Joined: Apr 2004
Posts: 8,344
Rockwall
S
Stump jumper Online content
TFF Celebrity
Stump jumper  Online Content
TFF Celebrity
S

Joined: Apr 2004
Posts: 8,344
Rockwall
Originally Posted By: Michael.Beaty
Thanks for the reply as y'all have said a carb is leaking so I will look into new float needle and seat for it
might as well replace 6 needles and seats


2200 Bay Champ/200 Mercury Optimax
2017 Tundra TSS 4x4 Crewmax 5.7L
Previous Thread
Index
Next Thread


© 1998-2018 OUTDOOR SITES NETWORK all rights reserved USA and Worldwide
UBB.threads™ 7.6.2