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At wide open throttle my 90 hp 2 stroke mercury outboard
at wide open throttle my 90 hp 2 stroke mercury outboard starts out running good and then loses rpm … read more
AntonioC93
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2005 2-stroke 90 hp mercury outboard with recently rebuilt
2005 2-stroke 90 hp mercury outboard with recently rebuilt carbs. 1st time out on water after rebuild had good top rpm (5800) and good idle. After 20 minutes of cruising @ 3000 rpm, powered down to ch… read more
Charles
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I recently purchased a 1987 Mercury 115 tower of power
I recently purchased a 1987 Mercury 115 tower of power outboard - inline 6. It has Rough starting and idling and BOG issue. It will "only" start/ idle when we give it throttle in neutral (advance the … read more
Michael
Michael
master marine technician/charter captain
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Jeff I have a Mercury 6cyl 90hp 1978 which starts well ,ticks over well will run on hal
Hi Jeff I have a Mercury 6cyl 90hp 1978 which starts well ,ticks over well will run on half throttle fine but when more than half throttle is applied it seems to bog if I leave morse in flat out posit… read more
Jeff G.
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I have a 2000 Mercury 125 HP carbed 2+2 outboard. Carbs were
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1990 honda bf45 will start ok but stalls on throttle up
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Charles
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My 1999 Mercury 150HP is running rough at idle. This has recently
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Jason
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I have a 20 hp 4 stroke Mercury 2010 outboard that had gas
I have a 20 hp 4 stroke Mercury 2010 outboard that had gas in it overwinter. It ran rough at both low and high idle and would not stay running. I cleaned the tank out, replaced fuel line from tank to … read more
Jason
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I have a 1986 Mercury 75 hp. recently cleaned carbs and adjusted
I have a 1986 Mercury 75 hp. recently cleaned carbs and adjusted idle. Ran at river today full throttle around 4000 rpm ran for eight miles with no hitches. Then engine drops power to 3000 rpm. Thrott… read more
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Jason
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I have just inherited a pontoon boat with a 90hp 3 cylinder
I have just inherited a pontoon boat with a 90hp 3 cylinder mercury on it. I at first could not even get it to start and now since changing the plugs and treating the fuel I can start and idle it all … read more
Noel Schembri
Noel Schembri
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hi i have a 2011 mercury efi 90hp 4 stroke, and i took it out
hi i have a 2011 mercury efi 90hp 4 stroke, and i took it out today and the motor is running rough on idle and on high rpm, and when its on throttle will run rough and after a few minutes runs well...… read more
Noel Schembri
Noel Schembri
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I have a 2003 90hp Mercury 2 stroke on my boat. I run it often
I have a 2003 90hp Mercury 2 stroke on my boat. I run it often and have had no problems with it up until about 2 weeks ago. When I first put it in the water, it cranks right up and runs great, but aft… read more
Jeremy R.
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I have a 2005 Mercury 90HP 2 stroke outboard. It has new plugs
I have a 2005 Mercury 90HP 2 stroke outboard. It has new plugs and new gas and Racor Water filter. Last weekend I started the boat easily, but it stalled when I put it in gear. Finally got it running … read more
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I have a 2000 Sea Doo 15 Challenger with twin Rotax motors
I have a 2000 Sea Doo 15' Challenger with twin Rotax motors in it each at 75 horsepower. The right engine is running well but the left is the problem. The right engine will be running at 6000-7000 RPM… read more
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We have a Mercury 90hp 2 stroke 3 cylinder outboard. We have
We have a Mercury 90hp 2 stroke 3 cylinder outboard. We have just finished replacing the ignition switch, spark plugs and cleaning the carburators. The motor starts, idles and runs fine up to 3500 rpm… read more
ROCKET
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I have a 2003 90hp Johnson(Bombardier) Motor on back of a Stratos
I have a 2003 90hp Johnson(Bombardier) Motor on back of a Stratos Bass Boat. Recently the motor started to sputter at low-end, stall at Idle, but is Fine at full tilt or high throttle. I believe it is… read more
Captain Dave
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Help! I have a 2004 Honda 4 stroke 90hp that is choking during
Help! I have a 2004 Honda 4 stroke 90hp that is choking during acceleration than stalls. New fuel filters, spark plugs, new gas, etc. Sounds good during idle. Any suggestions?… read more
Jason Forsberg
Jason Forsberg
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I have a 2003 90 Hp 2 stroke The engine will idle o/k but
I have a 2003 90 Hp 2 stroke The engine will idle o/k but will cut off after a few minutes It will start back up fine but stall out in a few minutes Also 1 time just before the idle problem started at… 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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