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I just purchased a used pontoon boat with a 2010 Mercury
I just purchased a used pontoon boat with a 2010 Mercury Verado 150 HP. First time out today. It starts easily and idles nicely, however when I bring the boat up on plane at higher RPM's, once it reac… read more
Charles
Charles
Marine Mechanic
Certified Mercury Tech
5,068 satisfied customers
1983 Mercury 115 HP outboard stalls/dies after revving up to
1983 Mercury 115 HP outboard stalls/dies after revving up to about 1200 RPM - but only when trying to accelerate in forward or reverse gear. Motor usually starts OK and idles fine and will rev up to h… read more
Jeff G.
Jeff G.
Marine Mechanic
Vocational, Technical or Trade Scho
4,729 satisfied customers
I have a 40 h.p. force 1998 that vibrates quite a bit even
I have a 40 h.p. force 1998 that vibrates quite a bit even in neutral.Prop doesnt appear to be damage other then a nick or two.This motor is on a 22" pontoon boat all stainless.Guy said he had it tune… read more
Tan
Tan
MerCruiser Certified Technician
Certified Marine Technician
11,264 satisfied customers
I have a 1979 Mercury 200 20hp outboard motor, without a prop.
I have a 1979 Mercury 200 20hp outboard motor, without a prop. The prop is a thru exhaust and 8 spline. I have found it to be nearly impossible to find a prop for it. But, the same year model Mercury … read more
Jason
Jason
Marine Mechanic
Vocational, Technical or Trade Scho
17,310 satisfied customers
I just bought a sea hunt edge 24 withf250xca. On test drive
I just bought a sea hunt edge 24 withf250xca. On test drive boat ran at 50mph 5900 rpm. I told dealer I wanted prop for speed and fuel efficiency Installed is Yamaha salt water 15 1/2 with 17 pitch I … read more
Charles
Charles
Marine Mechanic
Certified Mercury Tech
5,068 satisfied customers
About to buy a 2003 25 hp mercury LS EL remote outboard Ser#
About to buy a 2003 25 hp mercury LS EL remote outboard Ser# XXXXX It has prop on it. Has manual pull also. My look up says (20/25/JET 20 SEAPRO/MARATHON 15XD SUPER 15/JET20) (2-STROKE) Was this an or… read more
Tan
Tan
MerCruiser Certified Technician
Certified Marine Technician
11,264 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
I have a Mercury 40 HP Lighning XR 2006 model on a 4.6 stacer.
I have a Mercury 40 HP Lighning XR 2006 model on a 4.6 stacer. all was Ok until the engine started to overrev now and again under load. Eventually I thought it was the propeller so I changed the prope… read more
Jason
Jason
Marine Mechanic
Vocational, Technical or Trade Scho
17,310 satisfied customers
purchased "new" 2006 johnson 90hp v4 2stroke for 20 foot pontoon
purchased "new" 2006 johnson 90hp v4 2stroke for 20 foot pontoon ('06 Bentley with lifting strakes), and this motor cavitates over 4000 rpm (was equipped with '03 merc 75). which size and type of prop… read more
Tan
Tan
MerCruiser Certified Technician
Certified Marine Technician
11,264 satisfied customers
I have a 2006 Mercury 60 hp four stroke outboard. On my last
I have a 2006 Mercury 60 hp four stroke outboard. On my last fishing trip I throttled to WOT and the boat felt really sluggish. It would top out at about 4800-5100 rpm. About a mile down river the rpm… read more
Tan
Tan
MerCruiser Certified Technician
Certified Marine Technician
11,264 satisfied customers
I have a 20 hp Mercury outboard that has an eight spline prop
I have a 20 hp Mercury outboard that has an eight spline prop shaft. The serial number of the motor is(NNN) NNN-NNNN Every place I look shows that all Mercury 20 hp motors have a ten spline prop shaft… read more
Jason
Jason
Marine Mechanic
Vocational, Technical or Trade Scho
17,310 satisfied customers
My 2005 Mercury 25 HP 4-stroke engine runs fine at low speeds,
My 2005 Mercury 25 HP 4-stroke engine runs fine at low speeds, but at high RPM the prop slows/loses power but the engine is still at high rpm. What's up?… read more
Jason
Jason
Marine Mechanic
Vocational, Technical or Trade Scho
17,310 satisfied customers
I have had a new engine fitted to my 23 ft 1987 chriscraft
I have had a new engine fitted to my 23 ft 1987 chriscraft centre consol. The engine was professionally fitted including new controls. The previous engine was a johnson 175 hp v6, 25 in leg. The new m… read more
Noel Schembri
Noel Schembri
Marine mechanic
Diploma
1,735 satisfied customers
Hi, I have just fitted two 115 4 stroke Mercs(2010) to a 7.2mtr
Hi, I have just fitted two 115 4 stroke Merc's(2010) to a 7.2mtr Fibre Glass boat. The boat originally was fitted with twin 100 yamaha four strokes. I spend most my time trolling at around 6 - 10 knot… read more
Jeremy R.
Jeremy R.
5,362 satisfied customers
I have a 1997 ski natique that has developed a vibration in
I have a 1997 ski natique that has developed a vibration in the rear of the drive. The vibration is on there when the boat is being driven. No vibration when reving the engine in neutral. your suggest… read more
Tan
Tan
MerCruiser Certified Technician
Certified Marine Technician
11,264 satisfied customers
i have an 2005 DF 140. i did not use it for 7 months and so
i have an 2005 DF 140. i did not use it for 7 months and so i threw out all the gas and put 32 gallons of fresh gas in it. i added 28 oz of yamaha fuel stabilizer/conditioner. it starts promptly and i… read more
Captain Dave
Captain Dave
Marine Mechanic
Master's Degree
2,672 satisfied customers
hello i have a 17 foot crestliner superhawk with a 90 hp honda
hello i have a 17 foot crestliner superhawk with a 90 hp honda ob,, the boat has a 25 in. transom and it came as a package with the xl shaft motor. the problem is the shaft appears to be to long, it i… read more
Jeff G.
Jeff G.
Marine Mechanic
Vocational, Technical or Trade Scho
4,729 satisfied customers
have a 50 hp mercury 4cylinder engine it runs fine in the water
have a 50 hp mercury 4cylinder engine it runs fine in the water but wont accelarate past half throttle . have cleaned both carbs. and checked fuel pickup and lines . replaced all plugs and checked tha… read more
ROCKET
ROCKET
MASTER CERTIFIED TECH
Vocational, Technical or Trade Scho
426 satisfied customers
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Meet the Experts:

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Dominick

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Jason

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Tan

Tan

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Jeff G.

Jeff G.

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Captain Dave

Captain Dave

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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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