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1999 50 hp. Had vro replaced with reg fuel pump. Replaced
1999 50 hp Johnson. Had vro replaced with reg fuel pump. Replaced fuel hose and portable tank. New plugs have plugged off oil line was told that wires for vro are disconnected. Engine revs up to over … read more
Jason
Jason
Marine Mechanic
Vocational, Technical or Trade Scho
18,814 satisfied customers
Second opinion] I have a Rampage 30 express running 2 x
second opinion] Hi there I have a Rampage 30 express running 2 x Mercuriser 350 Horizon MPI engines, both motors run fine for about 10 minutes at full load and then we loose fuel pressure dropping fro… read more
Tan
Tan
MerCruiser Certified Technician
Certified Marine Technician
11,264 satisfied customers
I have a Rampage 30 express running 2 x Mercuriser 350
Hi there I have a Rampage 30 express running 2 x Mercuriser 350 Horizon MPI engines, both motors run fine for about 10 minutes at full load and then we loose fuel pressure dropping from 30 psi down to… read more
Matthew John
Matthew John
Cert II Electronic Engineering
73 satisfied customers
Related to one of my last questions to you about my shift
Hi Jason, related to one of my last questions to you about my shift position sensor, I was finally able to get my hands on the output of my mechanic's computer test of my engine (see attached). Can yo… read more
Jason
Jason
Marine Mechanic
Vocational, Technical or Trade Scho
18,814 satisfied customers
I have a 2005 mcm 350 mag mpi will rev in neutral but when
I have a 2005 mcm 350 mag mpi will rev in neutral but when onder a load only revs to 2500 new fuel pump and filter … read more
Jason
Jason
Marine Mechanic
Vocational, Technical or Trade Scho
18,814 satisfied customers
I have a 07 merc 50 hp Efi 4 stroke, on a boat I just
I have a 07 merc 50 hp Efi 4 stroke, on a boat I just purchased That I'm told only has 35 hrs on it, the boat had been winterized at a shop then sat for a full season of no use, the owner then sent it… read more
Charles
Charles
Certified Mercury Tech
5,158 satisfied customers
Fix my boat please. Boat appears to be in the safe mode.
Fix my boat please. Boat appears to be in the safe mode. Will not rev up beyond 3K. It has a 5.8 FSI (Ford 351W) Does this boat have a port for a code scanner.… read more
Joe
Joe
Owner Kingsland Auto & Marine Services
Vocational, Technical or Trade Scho
1,386 satisfied customers
I have a 75 hp mercserial# my problem is with controls in
I have a 75 hp merc(###) ###-####serial# ***** problem is with controls in neutral position motor revs up and won't idle. From off to start, instant high revs, in the 3k range. Obvious roughness with … read more
Jason
Jason
Marine Mechanic
Vocational, Technical or Trade Scho
18,814 satisfied customers
I have a volvo penta 5.7gi problem. Engine has about 450 hours, but sat over the winter w
I have a volvo penta 5.7gi problem. Engine has about 450 hours, but sat over the winter with water dripping on back of engine and cold temps. Fuel filters were changed and had water in them. Not sure … read more
Jason
Jason
Marine Mechanic
Vocational, Technical or Trade Scho
18,814 satisfied customers
Hi I Have a problem with a Mercruiser 5.0 Bravo EFI engine,
Hi I Have a problem with a Mercruiser 5.0 Bravo EFI engine, It will not rev above 3200 rpm under load. Engine details: 5.0 Bravo MY 2004 (October) Serial No: OWO68025. First fault was no fuel pressure… read more
Jason
Jason
Marine Mechanic
Vocational, Technical or Trade Scho
18,814 satisfied customers
93 OMC cobra ford 5.0 efi. serial #50FAPRJVB Im having an
93 OMC cobra ford 5.0 efi. serial #50FAPRJVB Im having an issue with my boat not reving up as high as it should in neutral. The whole engine and almost all other components have been replaced. But eve… read more
Joe
Joe
Owner Kingsland Auto & Marine Services
Vocational, Technical or Trade Scho
1,386 satisfied customers
I have twin 2004 135hp optmaxs, my starboard engine is shuting
I have twin 2004 135hp optmaxs, my starboard engine is shuting down around 3000 rpm. As long as I keep it under 3000rpm it will run all day. It is only when I go 3000 rpm or better. It will start righ… read more
Jason
Jason
Marine Mechanic
Vocational, Technical or Trade Scho
18,814 satisfied customers
I have a Suzuki df70 around 2000 model. When I start it up
I have a Suzuki df70 around 2000 model. When I start it up there is a beep exactly every 5 seconds. there are no warning lights in the gauge. I had the boat out today and the engine ran fine until I a… read more
Jason
Jason
Marine Mechanic
Vocational, Technical or Trade Scho
18,814 satisfied customers
when running both engines at 3000 rpms port engine had loss
when running both engines at 3000 rpms port engine had loss of rpm and couldnt throttle up past 2800 rpms. put engines in neutral and both throttled up fine only happened with load on engine.… read more
orcamarine
orcamarine
Proprietor
Vocational, Technical or Trade Scho
7 satisfied customers
Merc 50hp 2001 4stroke Out of gear snaps to 6000 rpm -
Merc 50hp 2001 4stroke Out of gear snaps to 6000 rpm - in gear dies after 3000rpm Have just spent 1700 on carb job and 400 on advance control electric control box any ideas where to look next!… read more
Jeff G.
Jeff G.
Marine Mechanic
Vocational, Technical or Trade Scho
4,729 satisfied customers
My volvopenta on my 22 Sea sport stalls out above 2000 rpm
My volvopenta on my 22' Sea sport stalls out above 2000 rpm when in gear. I can run the engine in neutral up to 3000-3500 rpm without any problems. We have done the routine yearly new parts, (spark pl… read more
James
James
Certified Marine Mechanic
Vocational, Technical or Trade Scho
4,094 satisfied customers
Have an 87 sea ray 268 with 7.4, just bought boat it came with
Have an 87 sea ray 268 with 7.4, just bought boat it came with a fresh overhauled 7.4 that we installed, I believe it is original to the boat. The engine runs fine at idle and in neutral but sputters … read more
Dominick
Dominick
Marine Mechanic
Vocational, Technical or Trade Scho
1,009 satisfied customers
I have a 1997 7.4 mpi merc engine that wont go above ...
I have a 1997 7.4 mpi merc engine that wont go above 3500rpm unless I unplug the map sensor then I get 4400 rpm I have replaced the map sensor and still have the same problem.… read more
Ted G.
Ted G.
Rigger, Diagnostician
Vocational, Technical or Trade Scho
704 satisfied customers
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Meet the Experts:

Dominick

Dominick

Marine Mechanic

1,009 satisfied customers

25 Years Experience as Mechanic, 20 Yrs Boat Yard Owner/Mechanic, Factory Certified

Ted G.

Ted G.

Rigger, Diagnostician

704 satisfied customers

40 years boating, Safe boating instruct., Offshore Race promoter, Failure Analysis, Expert Witness

John White

John White

Marine Mechanic

306 satisfied customers

11 years experience working on outboards, inboards, sterndrives & pwcs

Jason

Jason

Marine Mechanic

18,814 satisfied customers

Degree in Marine Technology. Gas and diesel marine mechanic.

Tan

Tan

MerCruiser Certified Technician

11,264 satisfied customers

40 yrs. experience with complete engine repairs both inboard/outboard and MerCruiser Certified Technician.

Jeff G.

Jeff G.

Marine Mechanic

4,729 satisfied customers

42 years experience, Certified Master Technician, All Major Outboards, Sterndrives, Hi-Performance

Captain Dave

Captain Dave

Marine Mechanic

2,672 satisfied customers

USCG Licensed Captain, 20+ Years Boating, Fishing, Maintenance and Repair Experience

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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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