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Are you a real person? I have an 02 merc 4 stroke carb that
i have an 02 merc 4 stroke carb that starts and runs fine but only hits 4k rpm and about 9 MPH on my 13' whaler … read more
Jason
Jason
Marine Mechanic
Vocational, Technical or Trade Scho
17,310 satisfied customers
I have a 2016 Mercury command thrust on a 24 foot pontoon.
good morning, I have a 2016 Mercury command thrust on a 24 foot pontoon. On WOT with engine all the way down my RPMS go up to about 5900 RPMS it runs for a couple min and then the RPMs drop to like 50… read more
Charles
Charles
Certified Mercury Tech
5,068 satisfied customers
I have a 2014 Rinker 246 BR. The motor is 260 hp. The boat
I have a 2014 Rinker 246 BR. The motor is 260 hp. The boat is on the heavy side and it takes awhile to plane out. The dealer mentioned going from a 3 blade to a 4 blade prop, which I did. The prop did… read more
Jason
Jason
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Vocational, Technical or Trade Scho
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WHAT IS THE PROP SIZE 120 HP ELPT MERCURY FORCE ENGINE. I
WHAT IS THE PROP SIZE FOR A 120 HP ELPT MERCURY FORCE ENGINE. I PURCHASED THIS ENGINE USED AND FEEL THE PROP IS NOT THE PROPER SIZE. CURRENTLY THE ONE I'M RUNNING IS 13 1/4 X 17 PITCH… read more
Tan
Tan
MerCruiser Certified Technician
Certified Marine Technician
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What props do you suggest for top speed/fuel economy for my
What props do you suggest for top speed/fuel economy for my '95 Mercruiser 5.7 Alpha One driving a 24' '71 Fiberform cabin cruiser (fairly heavy glass hull)?… read more
Ted G.
Ted G.
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Vocational, Technical or Trade Scho
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I have a 5.0 225 Merc Cruiser engine in 21 Sea Ray Purchased
I have a 5.0 225 Merc Cruiser engine in 21 Sea Ray Purchased in 2003. The engine seems to run fine, however I am experiencing high RPMs, 4000 at a speed that normally runs at 3000 RPMs. I am not getti… read more
Jason
Jason
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Vocational, Technical or Trade Scho
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I have a 1987 Mercruiser 5.7L 260 HP with Alpha 1 drive unit.
I have a 1987 Mercruiser 5.7L 260 HP with Alpha 1 drive unit. It runs great, but at 3200 RPM the engine disengages and RPMs kick up to around 4000 RPM and I usually have to go back to neutral to re-en… read more
Jeremy R.
Jeremy R.
5,362 satisfied customers
My 2003 Larson 330 Cabrio with Volvo 5.7 GXI duo props I
My 2003 Larson 330 Cabrio with Volvo 5.7 GXI duo props: I think I am having trouble with my throttles. I am only getting the rpms up to just about 4000 rpms and she is topping out around 32-33 mph. I … read more
Jeremy R.
Jeremy R.
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I have a 1988 Bayliner Ciera 2155 Cruiser. 3.0L 4cyl, OMC
I have a 1988 Bayliner Ciera 2155 Cruiser. 3.0L 4cyl, OMC cobra stern drive. Motor runs fine at idle, but will only go to 4000 rpm when full throttle position, and the boat wont plane. Top speed is ap… read more
Jason
Jason
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Vocational, Technical or Trade Scho
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I just bought a 32 planing hull cruiser that needs to be repowered,
I just bought a 32' planing hull cruiser that needs to be repowered, probably with twin 5.0 mercruiser EFI and Bravo II. Displacement wet is about 14,000 lbs. What stern drive gear ratio would you rec… read more
Jason
Jason
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Vocational, Technical or Trade Scho
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I bought a welcraft and the previous owner had a 5.0 mpi compleat
I bought a welcraft and the previous owner had a 5.0 mpi compleat engine installed and im wondering can i have my ecm reprogramed to higher rpm range? If so who can do it ? thanks Joe… read more
James
James
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Vocational, Technical or Trade Scho
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I recently replaced my 5.0 275 HP volvo penta marine engine
I recently replaced my 5.0 275 HP volvo penta marine engine (small block) with a 5.7 325 HP long block. My outdrive is a 1990 DPA volvo penta duoprop. I am replacing the propellor as I spun the hub on… read more
Whitecap36
Whitecap36
Marine Technician
Vocational, Technical or Trade Scho
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Hello i have a 1990 searay 22cc boat with alpha one leg which
Hello i have a 1990 searay 22cc boat with alpha one leg which i had rebuilt top & bottom the top is 1:50 gears and bottom is brand new merc part im running a 17 prop i think i might of had 1;62 GEARS … read more
Master Tech
Master Tech
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Vocational, Technical or Trade Scho
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I have 2001 Chaparral witrh twin 5.7 EFIs and Bravo 3 Stern
I have 2001 Chaparral witrh twin 5.7 EFI's and Bravo 3 Stern Drives On Sunday I had to run the boat up to 4000 RPM's to cruise at 26-27 MPH Seemed like the port engine was lagging - Tried put both eng… read more
briggs archer
briggs archer
master marine mechanic
Associate Degree
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I have a Mercruiser 4.3, and I took it out this summer for
I have a Mercruiser 4.3, and I took it out this summer for the first time since last year. It cranked right up and will idle perfect but when you increase the throttle to wide open it will only run 10… read more
Captain Dave
Captain Dave
Marine Mechanic
Master's Degree
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i have a 275 sea ray (260da) powered by a 5.0 l 260 hp mpi
i have a 275 sea ray = (260da) powered by a 5.0 l 260 hp mpi on a b3 leg ,fuel consumption 55 lt- 60 lt an hour 4000 rpm with a boat speed of 25 kn Q. Is this a standard consumption rate or do i have … read more
Dominick
Dominick
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Vocational, Technical or Trade Scho
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I own a 1994 Evinrude 120 Hp outboard, and had a ...
I own a 1994 Evinrude 120 Hp outboard, and had a question come up with it this weekend at the lake. When I would attempt to accelerate above 4000 rpm, especially while turning, the motor would stay at… read more
Larry B.
Larry B.
Marine Service Tech
High School or GED
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I have a 2001 Larson 210 lxi with a volvo penta 5.0 ...
I have a 2001 Larson 210 lxi with a volvo penta 5.0 my friend has a monterey same size engine. He also has a 4 blade prop. he blows me away in the water. My boat used to run faster. What could be the … read more
Scott
Scott
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Vocational, Technical or Trade Scho
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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

17,310 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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