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2001 twin 150 optimax. no smartcraft guages just volts and
2001 twin 150 optimax. no smartcraft guages just volts and engine temp guages. … read more
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I have a 2008 150 optimax outboard that I need to diagnose
I have a 2008 150 optimax outboard that I need to diagnose with a scan tool. The cheapest method I see is the techmate pro for about $600. Is there potentially any other more affordable option to get … read more
Charles
Charles
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Have a 2010 60 hp mercury efi is reeving up to 5000 + but
Hi there have a 2010 60 hp mercury efi is reeving up to 5000 + but the boat is not taking on the plane … read more
Jason
Jason
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Just got a 07 tahiti 220 with a 150 EFI mercury. Took it out
Just got a 07 tahiti 220 with a 150 EFI mercury. Took it out first time this past Saturday. Motor ran fine at plane at about 6000 rpm. Then after about 30 min it lost power started spit and sputter, a… read more
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I have a 2014 mercury 150 4 stroke EFI. when running on a
I have a 2014 mercury 150 4 stroke EFI. when running on a water hose at the base on motor it seems to have all cylinders not firing at full throttle. I Know it does it in neutral by design with the gu… read more
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My son has a 2007 mercury 225 hp xl. We bought it 2 yrs ago.
My son has a 2007 mercury 225 hp xl. We bought it 2 yrs ago. It ran well at 5600 to 5800 rpms. New power head with 50 hrs when we bought it. It has the smart gauges. It set up a few months with Stabil… read more
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I have a 2001 mercury optimax 225 i am having intermittent
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Jeff G.
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Mercury engine cutting out at high RPM. What can be the issue?
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Charles
Charles
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1987 115 HP Mercury outboard 2 stroke 6cyl. It has that high speed and low speed red/r
1987 115 HP Mercury outboard 2 stroke 6cyl. It has that high speed and low speed red/redwhite blue/blue white stator output. It won't rev past 3000. Stator: Blue 500 0lms blue white 478 Red 53 olms re… read more
Tan
Tan
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Hey guys. I have a 1997 Mercury 225 EFI. The last time I was
Hey guys. I have a 1997 Mercury 225 EFI. The last time I was out, I was coming back in and ran the motor above 5000 rpms. The oil and water lights and alarm started beeping intermittently. I stopped t… read more
Tan
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I have a 250 efi mercury 1999 and having overheating issue
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Charles
Charles
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We just bought a 2006 Tahoe w/150 mercury optimax. First time
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Jeff G.
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I have repowered my 1999 regal 2760 with two new 4.3LT MPI
I have repowered my 1999 regal 2760 with two new 4.3LT MPI If I trottle fast to around 2000rpm - 3300rpm engines seems to run ok. If I trottle slowly around 1500rpm I get a constant alarm and enigne s… read more
James
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I have a 2002 Merc EFI 225, I keep getting a series of Alarms....4
I have a 2002 Merc EFI 225, I keep getting a series of Alarms....4 beeps then it stops, and then another 4 beeps. When you get up on plane I get a constant alarm. I have no Temp gauge but show about 1… read more
Tan
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have mercury 50hp four stroke outboard warning alarm comes
have mercury 50hp four stroke outboard warning alarm comes on then engine inhibited until i back off revs have checked water flow at back of engine - is fine have topped up engine oil - is fine replac… read more
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I have a Mercury 2004 200 h.p. (carb.) With the engine running
I have a Mercury 2004 200 h.p. (carb.) With the engine running around 2500 to 3000 rpm, just before the boat go on plane, the engine will run hot ( the alarm will come on). If you idle the engine back… read more
Tan
Tan
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Mercury outboard runs fine but Im not seeing any spray of
Mercury outboard runs fine but I'm not seeing any spray of circulating water being shot out. Can't find where it's supposed to come out (no hole visible to me) motor worked fine last week. Is there so… read more
Scott
Scott
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Hi, I have a 2004 Mercury 115hp 4-stroke EFI outboard, when
Hi, I have a 2004 Mercury 115hp 4-stroke EFI outboard, when i rev the engine on neutral sounds fine and will rev up till rev limiter, but in gear or under load, it will start bogging past 3500 rpm and… read more
TOM
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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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