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My motor dies when shift to idle also dies when pushing the
My motor dies when shift to idle also dies when pushing the choke in. It's a mercury 4 stroke 9.9 electric start about 10years old. New to me never been on lake … read more
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Charles
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I have a 08 9.9 mercury big foot outboard on a pontoon boat.
I have a 08 9.9 mercury big foot outboard on a pontoon boat. … read more
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I have a 2007 Mercury Verado 150 hp 4 stroke that is hard to
I have a 2007 Mercury Verado 150 hp 4 stroke that is hard to start. It takes several cranks before it fires up and it missing a low speeds. The motor also starts to stall out after I back the motor do… read more
Charles
Charles
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60 hp 4 stroke EFI, OT625955. Outboard idles rough and then
60 hp 4 stroke EFI, OT625955. Outboard idles rough and then dies when throttled. I installed new fuel primer line. Authorized Merc repair shop cleaned & rebuilt VST, replaced low pressure lift pump, r… read more
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Charles
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Have a Mercury 9.9 Big Foot. Starts in neutral only at full
Have a Mercury 9.9 Big Foot. Starts in neutral only at full throttle. When I try to slow it down or get into gear - engine dies… read more
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I have a 2013 Mercury 9.9 electric start 4 stroke It won't
Hi I have a 2013 Mercury 9.9 electric start 4 stroke It won't idle and only runs at about half throttle It has run quite a few hours with ethanol based additive Carb has been cleaned and re cleaned an… read more
Jason
Jason
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My outboard 2012 mercury 9.9 four stroke will not run below
My outboard 2012 mercury 9.9 four stroke will not run below 50% throttle can you assist me.… read more
Charles
Charles
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My 9.9 Mercury 4 stroke outboard drops to idle. I have had
My 9.9 Mercury 4 stroke outboard drops to idle. I have had the carb and water pump checked. Any other ideas?… read more
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mercury 9.9: I bought a second hand mercury outboard 9.9 hp.
I bought a second hand mercury outboard 9.9 hp. How could i determine if it is a 2 stroke or a 4 stroke?… read more
Noel Schembri
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hello, have 115 4 stroke EFI 2002 model 150 hours running
hello, have 115 4 stroke EFI 2002 model 150 hours running very rough idle tru 1500 rpms max. just changed oil, water separator fuel filter, { no water at all in sample from old filter } replaced plugs… read more
Charles
Charles
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I have a Mercury outboard, 4 stroke, 9.9 hp motor that is about
I have a Mercury outboard, 4 stroke, 9.9 hp motor that is about 4 years old. Recently the motor has begun to stall out after running for about 10 to 15 minutes at full throttle speed. When the motor s… read more
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Jason
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Good Day, I own a 50HP Yamaha outboard 3 cilinder 2 stroke
Good Day, I own a 50HP Yamaha outboard 3 cilinder 2 stroke . It is running a bit rough on 3/4 to full throttle. I have a feeling that the carburettor settings are out. I wish to know the settings for … read more
Noel Schembri
Noel Schembri
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2006 mercury 9.9 4 stoke. Ran fine and all of a sudden started
2006 mercury 9.9 4 stoke. Ran fine and all of a sudden started dogging out. could keep it running by keeping the rpms up and feathering the choke. Found what looked like oil spitting from air box. Che… read more
Whitecap36
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I have a 9.9 hp Mercury outboard on a pontoon boat. It purs
I have a 9.9 hp Mercury outboard on a pontoon boat. It purs like a kittle in idle at full throttle but when I place in gear at put in full throttle it seems as if it is only running at half speed. Any… read more
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Type Your Question Here ... Mercury Outboard 9.9 hp question
Type Your Question Here ... Mercury Outboard 9.9 hp question - I have a 2007 Mercury 9.9 hp 4 stroke outboard for my inflatable. I laid it down flat on the wrong side - not the handle side. When I pic… read more
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Jeremy R.
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I own a 2004 Mercury 9.9 4 stroke outboard motor and accidently
I own a 2004 Mercury 9.9 4 stroke outboard motor and accidently transported it on the wroung side down causing oil to leak. What maintence or repairs are required before running motor.… read more
Captain Dave
Captain Dave
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I have a Mercury 9.9 HP, two stroke engine, S/N 09A28078. I
I have a Mercury 9.9 HP, two stroke engine, S/N 09A28078. I installed new plugs, gapped at .037in, fresh gas and oil, 50:1 mix. The engine will start on the second pull and will rev up when not in gea… read more
ROCKET
ROCKET
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When running my mercury 25hp outboard at fuel power the engine
When running my mercury 25hp outboard at fuel power the engine dies and stalls. I replaced the plugs but still the same. What should I try next?… read more
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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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