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We have a borrowed 1986 bass buggy with a 40HP Mercury
Jason, We have a borrowed 1986 bass buggy with a 40HP Mercury Outboard. The motor is roughly a 2006 model. Borrowed from a neighbor, he fired it right up by pushing in the key (choke) and starting it.… read more
Jason
Jason
Marine Mechanic
Vocational, Technical or Trade Scho
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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
Charles
Charles
Marine Mechanic
Certified Mercury Tech
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2002 90hp 2 stroke merc outboard, rough idle stalls going into
2002 90hp 2 stroke merc outboard, rough idle stalls going into gear.recent repairs carb removal and clean ,new plugs ,new coil pack, new voltage regulater, idle adjusting screw has no impact on idle s… read more
Tan
Tan
MerCruiser Certified Technician
Certified Marine Technician
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Have a 1998 50hp outbd bought used. I can start in nuetral
Have a 1998 50hp outbd bought used. I can start in nuetral with high rpms but will not idle below 1200 rpms. Once in gear and moving, runs great but as soon as it goes into nuetral/ idle, quickly drop… read more
Tan
Tan
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I have a 2007 (bought new in 2010) Mercury EFI 40 with jet
I have a 2007 (bought new in 2010) Mercury EFI 40 with jet drive. According to my dealer it is common for these engines to loose power at higher elevations. The best I can get my Merc to do at high el… read more
Charles
Charles
Marine Mechanic
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Have a 83 Merc 50 hp which has been giving me trouble for
Have a '83 Merc 50 hp which has been giving me trouble for the last year or so. Even after warm up I can't get it to run on closed throttle without raising the fast idle lever and then quickly dumping… read more
James
James
Certified Marine Mechanic
Vocational, Technical or Trade Scho
4,094 satisfied customers
35 merc outboard 1984 2 stroke only starts at extremely high
35 merc outboard 1984 2 stroke only starts at extremely high rpm and only will run at high rpm. when moving the throttle back to neutral to shift into gear it stops running. what are the likely causes… read more
James
James
Certified Marine Mechanic
Vocational, Technical or Trade Scho
4,094 satisfied customers
I have a 99, 30 horse, four stroke, Mercury outboard. When
I have a "99, 30 horse, four stroke, Mercury outboard. When I do a cold start, after a few attempts the motor will start. You can hear the enrichener kick in as the rpm's start to rise. After a few se… read more
Jason
Jason
Marine Mechanic
Vocational, Technical or Trade Scho
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have a 2002 200 br searay with 5.0l mpi motor. have changed
have a 2002 200 br searay with 5.0l mpi motor. have changed pluugs, wires, cap,rotor, water/fuel filter, also pumped out all fuel, has fresh fuel. will start and idle perfect, no noticeable " burps", … read more
James
James
Certified Marine Mechanic
Vocational, Technical or Trade Scho
4,094 satisfied customers
1976 evenrude 3 cylinder outboard that starts like a dream;
1976 evenrude 3 cylinder outboard that starts like a dream; idles perfect and will rev up with the control, but put it in forward and the engine stops. It will not run in gear. new plugs. The compress… read more
Tan
Tan
MerCruiser Certified Technician
Certified Marine Technician
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have a brand new 2009 larson lxi 238. with a volvo penta 5.7
have a brand new 2008 larson lxi 248. 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 forw… read more
Jeremy R.
Jeremy R.
5,362 satisfied customers
I have a 2000, 200Hp EFI Mercury outboard. I just bought the
I have a 2000, 200Hp EFI Mercury outboard. I just bought the boat used. It soon started having rough performance, vibration at around 1500 RPM under load and gradually got worse to the point now, afte… read more
Tan
Tan
MerCruiser Certified Technician
Certified Marine Technician
11,264 satisfied customers
I have a 2000 Mercury 50 hp outboard. It was running fine over
I have a 2000 Mercury 50 hp outboard. It was running fine over the weekend until Sunday. I was going across the lake at near full throttle when it began to bog and lose power. It would idle okay and n… read more
Jeremy R.
Jeremy R.
5,362 satisfied customers
I have a V200 Merc outboard. Last night I was running and
I have a V200 Merc outboard. Last night I was running and as I throttled down to idle speed the motor shut right off. It would turn over but not start. I kept trying and by using throtle only I got th… read more
Jeremy R.
Jeremy R.
5,362 satisfied customers
Hi...I own a 1979 Johnson outboard motor. When I accelerate
Hi...I own a 1979 Johnson outboard motor. When I accelerate the motor runs great for about 5 to 10 minutes, then dies out. I can start it back up but it will at no more than an idle. If I try to give … read more
Tan
Tan
MerCruiser Certified Technician
Certified Marine Technician
11,264 satisfied customers
I have a merc 115hp 4 cycle outboard with 110 hours on it.
I have a merc 115hp 4 cycle outboard with 110 hours on it. The other day it started acting up. It will not idle and the only way to get it to start is to put the throttle forward while starting. As so… read more
Larry B.
Larry B.
Marine Service Tech
High School or GED
574 satisfied customers
I have a 1997 Mercury outboard. I change the fuel filter but
I have a 1997 Mercury outboard. I change the fuel filter but it still runs rough at idle speed. When you give it gas it initially runs rough then clears out. What do you think is wrong… read more
ROCKET
ROCKET
MASTER CERTIFIED TECH
Vocational, Technical or Trade Scho
426 satisfied customers
i have a 1991 searay 180 w/v135 merc outboard...it ...
i have a 1991 searay 180 w/v135 merc outboard...it won''t keep an idle and stalls going into forward and revese unless i make a sort of speed shift. otherwise it runs great and starts easily. if i kee… read more
Captain Dave
Captain Dave
Marine Mechanic
Master's Degree
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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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