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Mercury 40 hp efi will idle at start. Will run fast no
mercury 40 hp efi will idle at start. Will run fast no problems there. However as soon as I go from forward to neutral it will beep 1 time and die It will start up everytime, just go in forward and ba… read more
Charles
Charles
Certified Mercury Tech
5,124 satisfied customers
When throttling up the engine starts bogging down and will
when throttling up the engine starts bogging down and will finally go back to idle … read more
Charles
Charles
Certified Mercury Tech
5,124 satisfied customers
2006 Mercury 60 ELPTEFI. It has the stalling issue between
2006 Mercury 60 ELPTEFI. It has the stalling issue between 1000-2000 rpm. Fuel system is 100% holds rock steady at 42 when this happens. Injectors are refurbished. Stator, map and temp sensors replace… read more
Jason
Jason
Marine Mechanic
Vocational, Technical or Trade Scho
18,747 satisfied customers
Have a 2004 Seadoo Utopia 18ft jet boat. When giving it gas
Have a 2004 Seadoo Utopia 18ft jet boat. When giving it gas to come out of the water it dies. Once it is going, it runs well, but when you put it into neutral it will die again. This doesn't always ha… read more
Charles
Charles
Certified Mercury Tech
5,124 satisfied customers
I'm looking for a mercury 2 stroke specialist. The motor is
The motor is a 2000 mercury 250 efi saltwater series … read more
Jason
Jason
Marine Mechanic
Vocational, Technical or Trade Scho
18,747 satisfied customers
2006 Mercury 30 hp. Efi Idles great, wot is good, dies, pops
2006 Mercury 30 hp. Efi Idles great, wot is good, dies, pops and sputters in between. Dies on acceleration. Fuel system is clean, new plugs, valves are adjusted. … read more
Charles
Charles
Certified Mercury Tech
5,124 satisfied customers
2006 90 HP mercury stalls at idle. It runs great at all
2006 90 HP mercury stalls at idle. It runs great at all other speeds. I adjusted the idle screw and that worked for a few hours but then it started stalling again???… read more
Charles
Charles
Certified Mercury Tech
5,124 satisfied customers
I have a 2006 Mercury four stroke, and at speed it runs
I have a 2006 Mercury four stroke, and at speed it runs good, and at idle it runs fine, however when i try to apply quick power as to slow in a slip or dock it dies every time?… read more
Jason
Jason
Marine Mechanic
Vocational, Technical or Trade Scho
18,747 satisfied customers
I have a older mercury 3 cyl outboard idles fine but when advancing
I have a older mercury 3 cyl outboard idles fine but when advancing up throttle engines boos down back of it it returns to idle smooth if I feather it up back and forth a little it will get up to wide… read more
Charles
Charles
Certified Mercury Tech
5,124 satisfied customers
I have problems with my Volvo Penta 2006 4.3 Gxi quiting at
I have problems with my Volvo Penta 2006 4.3 Gxi quiting at in gear idle speed when docking, or in no-wake zones...not every time but often...new plugs gapped to spec didn't help. My Volvo mech has ru… read more
Jason
Jason
Marine Mechanic
Vocational, Technical or Trade Scho
18,747 satisfied customers
my 2010 mercury 25 hp EFI dies EVERY time i throttle back -
my 2010 mercury 25 hp EFI dies EVERY time i throttle back - if i'm at 3/4 throttle and start to pull the control arm back, the motor doesn't respond by slowing, then at a certain point when i've pulle… read more
Jason
Jason
Marine Mechanic
Vocational, Technical or Trade Scho
18,747 satisfied customers
2006 merc fourstroke efi starts and idles ok will throttle up but dies
2006 merc fourstroke efi starts and idles ok will throttle up but dies when put back to idle. had bad fuel flushed fuel lines and replaced vapor seperator and hi pressure pump, compression good, new s… read more
Jason
Jason
Marine Mechanic
Vocational, Technical or Trade Scho
18,747 satisfied customers
1988 60 HP Mercury outboard dies out after a few minutes at
1988 60 HP Mercury outboard dies out after a few minutes at Wide open throttle. It will remain idling if I pull back on the throttle to neutral . It idles fine , just lags and bogs down as I give it t… read more
Tan
Tan
MerCruiser Certified Technician
Certified Marine Technician
11,264 satisfied customers
I have twin 420s - 8.1L Stbd has starting problem. It starts
I have twin 420s - 8.1L Stbd has starting problem. It starts to crank and dies. I advance throttle slightly and find a sweet spot for the engine to start. after a few seconds returning to idle at 800 … read more
Jason
Jason
Marine Mechanic
Vocational, Technical or Trade Scho
18,747 satisfied customers
Hello Jeff I have a 2002 Mercruiser 5.0L stern drive--Multi
Hello Jeff I have a 2002 Mercruiser 5.0L stern drive--Multi port inj engine has very low hrs and runs great except for idle speed-approx 100 rpm low- I gather computer controls this via idle air valve… read more
Jeff G.
Jeff G.
Marine Mechanic
Vocational, Technical or Trade Scho
4,729 satisfied customers
I have a brand new 2009 larson lxi 238. with a volvo penta
I have a brand new 2009 larson lxi 238. with a volvo penta 5.7 fuel injected gas engine. It has zero hours on it. I put it in the wather. Fires up, only when pumping the throttle 75 for 100 percent fo… read more
James
James
Certified Marine Mechanic
Vocational, Technical or Trade Scho
4,094 satisfied customers
boat will start and run fine. shut it off after it is warmed
boat will start and run fine. shut it off after it is warmed up and it will resart, then begin to run erattically, going to high and low rpm and the alarm will sound. the boat shuts off and will not r… read more
Joe
Joe
Owner Kingsland Auto & Marine Services
Vocational, Technical or Trade Scho
1,382 satisfied customers
A 1991 Yamaha 175 Hp outboard. No detected spark in center
A 1991 Yamaha 175 Hp outboard. No detected spark in center cylinder port side. replaced coil no luck. Runs poorly at low RPM. Cannot adjust RPM over 600. Wants to die when put into gear. Smooths out a… read more
Doug Dominick
Doug Dominick
Vocational, Technical or Trade Scho
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Meet the Experts:

Dominick

Dominick

Marine Mechanic

1,009 satisfied customers

25 Years Experience as Mechanic, 20 Yrs Boat Yard Owner/Mechanic, Factory Certified

Ted G.

Ted G.

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40 years boating, Safe boating instruct., Offshore Race promoter, Failure Analysis, Expert Witness

John White

John White

Marine Mechanic

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11 years experience working on outboards, inboards, sterndrives & pwcs

Jason

Jason

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18,747 satisfied customers

Degree in Marine Technology. Gas and diesel marine mechanic.

Tan

Tan

MerCruiser Certified Technician

11,264 satisfied customers

40 yrs. experience with complete engine repairs both inboard/outboard and MerCruiser Certified Technician.

Jeff G.

Jeff G.

Marine Mechanic

4,729 satisfied customers

42 years experience, Certified Master Technician, All Major Outboards, Sterndrives, Hi-Performance

Captain Dave

Captain Dave

Marine Mechanic

2,672 satisfied customers

USCG Licensed Captain, 20+ Years Boating, Fishing, Maintenance and Repair Experience

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Disclaimer: Information in questions, answers, and other posts on this site ("Posts") comes from individual users, not JustAnswer; JustAnswer is not responsible for Posts. Posts are for general information, are not intended to substitute for informed professional advice (medical, legal, veterinary, financial, etc.), or to establish a professional-client relationship. The site and services are provided "as is" with no warranty or representations by JustAnswer regarding the qualifications of Experts. To see what credentials have been verified by a third-party service, please click on the "Verified" symbol in some Experts' profiles. JustAnswer is not intended or designed for EMERGENCY questions which should be directed immediately by telephone or in-person to qualified professionals.

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