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I have just purchased a 24 foot pontoon with a 1998 60 hp
i have just purchased a 24 foot pontoon with a 1998 60 hp big foot motor and wide open will only hit 3200 rpm on the tach the prop is good but im not by the boat to tell you the prop pitch but it idle… read more
Charles
Charles
Certified Mercury Tech
5,070 satisfied customers
I just bought a 2003 glastron 21 foot bow rider with a 5.7
I just bought a 2003 glastron 21 foot bow rider with a 5.7 merc inboard and a bravo 1 outdrive. what would be the best prop for this boat. It had a 5.0 which has been replaced with a 5.7 EFI.… read more
Tan
Tan
MerCruiser Certified Technician
Certified Marine Technician
11,264 satisfied customers
I have a 1998 225 efi mercury on a stratos 201 pro xl. Came
I have a 1998 225 efi mercury on a stratos 201 pro xl. Came from a lower elevation. I boat around 5000ft. Had a cutsom built 4 blade prop w/ no numbers stamped on it. A local prop shop measured it at … read more
Jason
Jason
Marine Mechanic
18,639 satisfied customers
I have a sun track 21 foot with a 60 horse big foot mercury.
I have a sun track 21 foot with a 60 horse big foot mercury. i was told that when i brought the boat that the big foot mean that i have the horse power of a 90 horse and the economy of a 60, but the b… read more
Tan
Tan
MerCruiser Certified Technician
Certified Marine Technician
11,264 satisfied customers
I have a 14.5 foot pride boat with a 175hp Yamaha motor which
I have a 14.5 foot pride boat with a 175hp Yamaha motor which is probably way to big for the boat but that is what it came with. it is very stern heavy and hard to steer especially to port. we have re… read more
Tan
Tan
MerCruiser Certified Technician
Certified Marine Technician
11,264 satisfied customers
Hello, I have a 1984 Wellcraft 210 Elite, I recently had to
Hello, I have a 1984 Wellcraft 210 Elite, I recently had to have the 260HP 5.7 engine replaced, mechanic installed a 228HP 5.0 Engine, Boat will not plane out with more than 2 people on board, the eng… read more
James
James
Certified Marine Mechanic
Vocational, Technical or Trade Scho
4,094 satisfied customers
I have mercury 50 HP Elpto 2004. Water not coming out of discharge
I have mercury 50 HP Elpto 2004. Water not coming out of discharge hole. How do I flush it/ clean it. May have sand/mud as I was in shallows. second question. I am having ventilation/cavitation proble… read more
Malta Tech
Malta Tech
Marine Tech
High School or GED
287 satisfied customers
My 8.1 mercruiser is over reving at full throttle. It revs
My 8.1 mercruiser is over reving at full throttle. It revs to about 5100 rpms then beeps and then seems to hit some sort of a rev limiter or limp mode. I checked the prop and it is the recommended pro… read more
MarineService8
MarineService8
34 satisfied customers
i have a 1985 evinrude 140vro , im tryin to size a prop for
i have a 1985 evinrude 140vro , im tryin to size a prop for it.... do you know what the max recomended rpm's are for this motor? thanx Glen… read more
Tan
Tan
MerCruiser Certified Technician
Certified Marine Technician
11,264 satisfied customers
I saw a 1996 chaparral 2130 ss with a 7.4 mercruiser,bravo
I saw a 1996 chaparral 2130 ss with a 7.4 mercruiser,bravo 2 outdrive,dual stainless steel prop with extended hull for quick planning. I was told this engine over heats. What is the gas mileage? Will … read more
Noel Schembri
Noel Schembri
Marine mechanic
Diploma
1,739 satisfied customers
I have volvo ips 500 drive/engines on my boat. The weight
I have volvo ips 500 drive/engines on my boat. The weight distribution of the boat seems to be tail (stern) heavy, so in order to get best fuel economy I must operate the engines at over 3000rpm, with… read more
Jason
Jason
Marine Mechanic
18,639 satisfied customers
What is the correct gear ratio for the outdrive on a MCM 5.7Lv8
What is the correct gear ratio for the outdrive on a MCM 5.7Lv8 the boat is a Rinker, Engine serial # XXXXX Trans serial # XXXXX there is a 1.84:1 on at the moment but we think it has been changed, an… read more
capt ron 1959
capt ron 1959
Owner/Marine Mechanic
Vocational, Technical or Trade Scho
348 satisfied customers
Late last year I purchased a 1993 Regal 17 foot I/O equipted
Late last year I purchased a 1993 Regal 17 foot I/O equipted with an 4.3 L Alpha One Mercruiser sterndrive. Engine is rated at 190 hp. I had to immediately replace the prop due to existing damage. My … read more
James
James
Certified Marine Mechanic
Vocational, Technical or Trade Scho
4,094 satisfied customers
I have a 2006 Nitro with a 2006 135 h.p. merc optimax. When
I have a 2006 Nitro with a 2006 135 h.p. merc optimax. When I bought the boat this year the boat would run aprox. 56mph top end with two people and gear in the boat with a tempest 21p prop. Two months… read more
Jeff G.
Jeff G.
Marine Mechanic
Vocational, Technical or Trade Scho
4,729 satisfied customers
Just fitted a mates prop to my mercruiser 3ltr with alpha 1
Just fitted a mates prop to my mercruiser 3ltr with alpha 1 leg 21 p engine over heats at certian revs very quickly then just as quick goes back to normal temp took his prop off and put my origanel ba… read more
Dominick
Dominick
Marine Mechanic
Vocational, Technical or Trade Scho
1,009 satisfied customers
i have a 23 cabin cruiser with a 225 volvo powered by a 305
i have a 23' cabin cruiser with a 225 volvo powered by a 305 chevy i can not get up on plain without using trim tabs. could this be a prop problem or shoud i consider fins… read more
Captain Dave
Captain Dave
Marine Mechanic
Master's Degree
2,672 satisfied customers
What is the optimum rpm range for a 5.7 mercruiser on a 23
What is the optimum rpm range for a 5.7 mercruiser on a 23 foot maxum and what is the best prop size/pitch to achieve this?… read more
Dominick
Dominick
Marine Mechanic
Vocational, Technical or Trade Scho
1,009 satisfied customers
hi,i bought a 1988 bayliner trophy 21 ft. it had a 4.3 from
hi,i bought a 1988 bayliner trophy 21 ft. it had a 4.3 from fact. a 5.7 was put in 2004, the leg had to be rebuilt in 2006, was this from to much torque from the 5.7 or is it the same leg as the 4.3?… read more
Dominick
Dominick
Marine Mechanic
Vocational, Technical or Trade Scho
1,009 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

18,639 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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