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I have a 1987 20 horse and it's backfiring through the
I have a 1987 Johnson 20 horse and it's backfiring through the exhaust won't start … read more
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Jason
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Vocational, Technical or Trade School
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Jason
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I have a 2000 Ski Centurion with a 350 mag mpi engine.
I have a 2000 Ski Centurion with a 350 mag mpi engine. Started up the first time this season and it is backfiring under load and has intermittent/surging power at high speed. Thought it could be bad g… read more
Joe
Joe
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Merc 90 hp seems as though one cylinder is dropping out for
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Charles
Charles
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2000 50hp johnson 2 stroke model #j50plssm. I just bought it,
2000 50hp johnson 2 stroke model #j50plssm. I just bought it, ran 4 times,30 minutes each time. it missed some the first time and has continued to get much worse. Wide open now it only runs a short di… read more
Tan
Tan
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I have a 48 hp spl johnson engine but dont know year. Cant
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Hi - I have a Mercury 200 EFI 1997 Model on a champion boat,
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Charles
Charles
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Johnson spl 48 loss of power cranks good .changed plugs both
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Tan
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I have a Johnson 85 hourse power Javilin Sea Horse motor. when
I have a Johnson 85 hourse power Javilin Sea Horse motor. when I purchased it a few weeks ago I put it in the water motor started fine power was good but the temp went up and an alarm went of with in … read more
MRYZ450F
MRYZ450F
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Have a 55 hp yamaha outboard. Ran it three times this year,
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Jeremy R.
Jeremy R.
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Ford moter 5.0 Ran out of gas with my in/out board but managed
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Jeremy R.
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I just bought a 2006 Yamaha VX110 Deluxe wave runner with 6
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shane j forrest
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I seem to have carbon buildup on my cylinders according to
I seem to have carbon buildup on my cylinders according to my mechanic. I ran the boat for about 8-9 hours over two weekends and 6 of the 8 plugs were fouled. He put a new coil in and cleaned the plug… read more
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capt ron 1959
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I have a polaris xlh and last season I put a container of fuel
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RSRBOB
RSRBOB
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I HAVE A 1976 140 HORSE JOHNSON OUT BOARD MOTOR. THE MOTOR
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Jason Forsberg
Jason Forsberg
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Greetings, I have a 99 Johnson 35 HP, 3cyl. for the past
Greetings, I have a '99 Johnson 35 HP, 3cyl. for the past two seasons I've had trouble with the motor dying anywhere from 30 sec. to 4 min. after launching. I've replaced fuel filter, spark plugs, fre… read more
davesoutboard
davesoutboard
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Johnson 9.9 outboard motor three years old. Carbon on sparkplugs.
Johnson 9.9 outboard motor three years old. Carbon on sparkplugs. Cleaned plugs and motor ran five minutes and stalled. Wouldn't start. New plugs fouled in five minutes. New, clean gas and purged fuel… 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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