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The boat is very slow to get on plane. I do not feel it is
https://www.google.com/search?q=I+have+a+2003+115+mecury+4+stroke+on+a+19+ft+kenner+bay+half+tunnel+hull.+the+13.25x19+ss+Solas+prop+turns+4800+rpms+and+38+mph+at+full+throttle+and+is+sluggish+out+of+… read more
Ted G.
Ted G.
Rigger, Diagnostician
Vocational, Technical or Trade Scho
2,678 satisfied customers
My 2019 Mercury 60 HP 4 stroke is overreving at 6500 - 6700
My 2019 Mercury 60 HP 4 stroke is overreving at 6500 - 6700 rpm. Current prop is a 10.5 x 13 aluminum. What can I do to lower the rpm … read more
Jason
Jason
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Vocational, Technical or Trade School
22,043 satisfied customers
I'm purchasing a Hydro sport Vector 2400 center consul with
I'm purchasing a Hydro sport Vector 2400 center consul with an early 250 E tec on it. The performance is dismal with a 14 and three-quarter by 17 three blade prop. It also came with a four bladed 14 a… read more
Jason
Jason
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Vocational, Technical or Trade School
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I have a 2005 2870 Pursuit Walk Around boat powered with
I have a 2005 2870 Pursuit Walk Around boat powered with twin 225 hp Yamaha 4 stroke outboards. I currently have M-19 3 blades stainless steel props and I want to change to 4 blade stainless steel. My… read more
Noel Schembri
Noel Schembri
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Diploma
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I have a 2000 Hewes Bonefisher 18 powered by a 1999 Yamaha
I have a 2000 Hewes Bonefisher 18 powered by a 1999 Yamaha 130. WOT is 4700 rpm and hole shot is poor. Thinking it is the prop which is a 3 blade SS 13.25x19. The prop is probably ten years old, decen… read more
Ted G.
Ted G.
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Vocational, Technical or Trade Scho
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I have 2012 Xpress alunimum Bass boat it has a F-40 hp
I have 2012 Xpress alunimum Bass boat it has a F-40 hp motor. I have been unhappy with the performance it has 20 hrs. on it I have put a whale fin and a stainless steel prop on it with 2 people it run… read more
Charles
Charles
Certified Mercury Tech
5,752 satisfied customers
I have a 2003 Mercury 115 4 stroke. When you get planed and running down the river the po
I have a 2003 Mercury 115 4 stroke. When you get planed and running down the river the power drops off, if you pull back the throttle just a hair and open it back up it will take off than drops off ag… read more
Charles
Charles
Certified Mercury Tech
5,752 satisfied customers
I have a 1996 175 ultima smoker craft with a 1996 115 mercury.
I have a 1996 175 ultima smoker craft with a 1996 115 mercury. It has a 13 x 19 prop. When i go wot my tach will hit 6000 rpm. I don,t want hurt motor so I can only run 3/4 throttle to maintain around… read more
Jason
Jason
Marine Mechanic
Vocational, Technical or Trade School
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I have a 50 hp four stroke suzuki outboard. It has a 12 pitch
I have a 50 hp four stroke suzuki outboard. It has a 12 pitch prop that at wot will turn just over 6000 rpm's. The last time out the wot was only about 5400 rpm's and with out changing the throttle th… read more
orcamarine
orcamarine
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I have a 2005 115 hp 4 stoke EFI engine. It doesnt seem to
I have a 2005 115 hp 4 stoke EFI engine. It doesn't seem to deliver the performance I think it should. It came to me with a 17" prop and would only tach about 4800 rpms. I changed to a 15 and it gets … read more
Jason
Jason
Marine Mechanic
Vocational, Technical or Trade School
22,043 satisfied customers
I have a 16 ft. aluminum Legend fishing boat (side console).
I have a 16 ft. aluminum Legend fishing boat (side console). The hull Weight is 640 lbs. Maximum capacity is 1,220 lbs. The outboard engine is 25 HP EFI 4-Stroke. The engine's full throttle RPM range … read more
Jason
Jason
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Vocational, Technical or Trade School
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Dont understand pitch on a prop, what pitch will give me the
Don't understand pitch on a prop, what pitch will give me the best speed, and which for the best torc?… read more
James
James
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Vocational, Technical or Trade Scho
4,094 satisfied customers
I have a 21 foot 2005 searay ski boat with a 5.0 ltr 2 barrel
I have a 21 foot 2005 searay ski boat with a 5.0 ltr 2 barrel carb. The boat is sluggish and I am looking for ways to make it have a better hole shot and perform better all around. I have been warned … read more
James
James
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Vocational, Technical or Trade Scho
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hello i own a 25.5 sea ray amberjack 10 ft. beam 152 gal. gas
hello i own a 25.5 sea ray amberjack 10 ft. beam 152 gal. gas tank fresh water tank this has a 350 mercruiser engine 260 hp. it does get on plane fairly quick about 5-6 sec. but seems sluggish on top … read more
Captain Dave
Captain Dave
Marine Mechanic
Master's Degree
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Please direct my question to Jeff G. Hello Jeff. Hope you
Please direct my question to Jeff G. Hello Jeff. Hope you remember me. You helped me recently with a rebuild on an 2001 250 HP Yamaha Salt Water Series outboard. The engine is performing well but I ha… read more
Jeff G.
Jeff G.
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Vocational, Technical or Trade Scho
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What size replacement propeller is appropeiate for my 90 HP
What size replacement propeller is appropeiate for my 90 HP year 1999 Johnson outboard boat motor installed on a 22 ft pontoon boat.. Does the age of the motor make a difference? It runs about 100 hou… read more
Jason
Jason
Associate Degree
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I have a 28 kingfisher boat with twin 150 hp hondas on it.
I have a 28' kingfisher boat with twin 150 hp hondas on it. What do you think the best prop size would be for this application. I currently am running 3x15x17 pitch. Would 3x14.8x19 pitch be better. I… read more
Captain Dave
Captain Dave
Marine Mechanic
Master's Degree
2,672 satisfied customers
Hi. I have a 2006 Mercury ( Tohatsu) 25hp 4 Stroke outboard
Hi. I have a 2006 Mercury ( Tohatsu) 25hp 4 Stroke outboard on a 19 foot pontoon boat. The recommended rpm is 5600-6000, I only achieve 5200-5400 with the 10 1/4" by 8"Pitch quick silver prop I have. … read more
Jason Forsberg
Jason Forsberg
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Vocational, Technical or Trade Scho
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Meet the Experts:

Ted G.

Ted G.

Rigger, Diagnostician

2,678 satisfied customers

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

Dominick

Dominick

Marine Mechanic

1,009 satisfied customers

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

John White

John White

Marine Mechanic

306 satisfied customers

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

Jason

Jason

Marine Mechanic

22,043 satisfied customers

Degree in Marine Technology. Gas and diesel marine mechanic.

Tan

Tan

MerCruiser Certified Technician

11,507 satisfied customers

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

Jeff G.

Jeff G.

Marine Mechanic

4,730 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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