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2004 Bayliner 175 with 3.0 mercruiser. Boat starts up and
2004 Bayliner 175 with 3.0 mercruiser. Boat starts up and runs fine in neutral. When put in gear it runs fine until about 2000 rpms. It then loses power. When in neutral I can rev engine up to 4500 rp… read more
Noel Schembri
Noel Schembri
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Diploma
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The motor is a 90 HP 4 steoke EFI.There is an intermittent
The motor is a 90 HP 4 steoke EFI.There is an intermittent fault.The motor starts fine,put it in gear and bring up the revs...sometimes there is a 6 beep warning and the revs will not go past 2540.The… read more
Charles
Charles
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5,752 satisfied customers
60 hp 4 stroke starts good runs @4500 for a couple of
60 hp 4 stroke starts good runs @4500 for a couple of minutes then shuts down to an idle carbs cleaned coils tested fuel pump pressure @vacuum ok fuel line checked. thanks Martin … read more
Jason
Jason
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Vocational, Technical or Trade School
22,043 satisfied customers
I have a Century 2400 inland I just bought....... The owner
I have a Century 2400 inland I just bought....... The owner said everything was running good he had it serviced.......I bought boat runs great for about 10 seconds at 5000 Rpms then it starts surging … read more
Jason
Jason
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Vocational, Technical or Trade School
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Searay 340 with twin merc 340hp Starboard Won't rev past
Searay 340 with twin merc 340hp Starboard Won't rev past 2500 rpm We rebuilt carb Stalls after ideling 10 minutes won't rev past 2500 Runs good idle-2400… read more
Tan
Tan
MerCruiser Certified Technician
Certified Marine Technician
11,409 satisfied customers
07 60 hp Merc on a 19' Suntracker. Ran just fine until I
'07 60 hp Merc on a 19' Suntracker. Ran just fine until I took it out and changed the oil. Now it wont exceed 4000 rpm in gear. Revs good in neutral. Took it back out, checked the impellor, cleaned an… read more
Jason
Jason
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Vocational, Technical or Trade School
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Hi, I have a 1983 sea ray with a merc cruiser,I believe a
Hi, I have a 1983 sea ray with a merc cruiser,I believe a alph 1.I bought without it running,I rebuilt carb and put new fuel pump on it it started nice and runs nice,found out no water pumping thru.Pr… read more
Tan
Tan
MerCruiser Certified Technician
Certified Marine Technician
11,409 satisfied customers
2005 60 hp 4 stroke, under power running rough wont go past
2005 60 hp 4 stroke, under power running rough wont go past 3200 rpm, in neutral will re v up fine, checked fuel fulter, changed out plugs still not good, was out riding around was running fine then a… read more
Charles
Charles
Certified Mercury Tech
5,752 satisfied customers
Hi, Our Merc 8 hp 4-stroke (2008 vintage) stalls in neutral
Hi, Our Merc 8 hp 4-stroke (2008 vintage) stalls in neutral and at low speeds. We've had this problem for the past 3+ years since we bought it new. Seems like an idling problem. Last year the motor ra… read more
orcamarine
orcamarine
Proprietor
Vocational, Technical or Trade Scho
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mercury 60 fourstroke bigfoot efi motor. starts and runs whilst
mercury 60 fourstroke bigfoot efi motor. starts and runs whilst in idle, as soon as revs are increased, the motor cuts out as if fuel starvation. it starts again and idles but given revs it cuts again… read more
Whitecap36
Whitecap36
Service Manager/Technician
Vocational, Technical or Trade Scho
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hallo.wonder if you can help. my evinrude 70 hp 3 cyl elecstart
hallo.wonder if you can help. my evinrude 70 hp 3 cyl elecstart 1984 model does not run as smooth as the other one.also when going out to sea after about 30-60 seconds she loses power/revs(completely)… read more
Whitecap36
Whitecap36
Service Manager/Technician
Vocational, Technical or Trade Scho
1,557 satisfied customers
I have a 1985 120 hsp merc cruiser. What is happening
I have a 1985 120 hsp merc cruiser. What is happening is that in gear at very low speed it runs fine however when you try to speed up it backfires through the carb farts miisess and stallls . Itrestar… read more
Tan
Tan
MerCruiser Certified Technician
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11,409 satisfied customers
I HAVE A 2002 SUZUKI DT140 EFI--I REMOVED FUEL LINE TO ENGINE
I HAVE A 2002 SUZUKI DT140 EFI--I REMOVED FUEL LINE TO ENGINE TO DRAIN OUT OLD FUEL. AFTER REPLACING FUEL LINE AND PUMPING UP FUEL TO ENGINE, MOTOR WILL NOT TURN MORE THAN 3000 RPM UNDER LOAD-(SEAMS T… read more
Tan
Tan
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Certified Marine Technician
11,409 satisfied customers
I have a 60 hp merc efi 4cyl 4stroke big foot on my 22ft pontoon.
I have a 60 hp merc efi 4cyl 4stroke big foot on my 22ft pontoon. It runs rough at about 2500 rpm. this has been the case since this spring when I bought the pontoon. I have treated the fuel with sea … read more
ROCKET
ROCKET
MASTER CERTIFIED TECH
Vocational, Technical or Trade Scho
426 satisfied customers
I have a 2001 mercury 40 hp 4 stroke EFI outboard motor. only
I have a 2001 mercury 40 hp 4 stroke EFI outboard motor. only problem is that when returning to slower speed or idle speed after runing up to about 4500 rpm ....when returning to slower speed I get a … read more
joshua.mathis
joshua.mathis
High School or GED
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2000 merc 200 hp EFI less than 50 total hours on 20
2000 merc 200 hp EFI less than 50 total hours on 20' VIP Stealth bass boat Bought new in 04, Merc warranty program till 06 problem is hole shot props tried at sea level Tempest 25 and 23 still very we… read more
Mechman45
Mechman45
Vocational, Technical or Trade School
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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
TOM
Vocational, Technical or Trade Scho
196 satisfied customers
05 Merc. 5 hp outboard 2 stroke. carb has been cleaned and
05 Merc. 5 hp outboard 2 stroke. carb has been cleaned and idles perfectly, revs to full rpm in neutral, but not in gear, fwd or rev. fuel filters have been replaced. i can find the idle air mix screw… 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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