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How do you get water out of the engine? Let me explain the
How do you get water out of the engine? Let me explain the boat almost sank and water got into the boat and then the engine they weren't ever fully under the water. This happen when something shot up … read more
Charles
Charles
Certified Mercury Tech
5,076 satisfied customers
Have yamaha 115 4 stroke (2000) when out of water and im flushing
Have yamaha 115 4 stroke (2000) when out of water and im flushing motor it runs and sounds like a fomula 1 race car, when in the water and under load it struggles to get up on plane, and is about 12 m… read more
Jason
Jason
Marine Mechanic
18,644 satisfied customers
I have a 02 f225 4 stroke outboard Yamaha that breaks up at
I have a 02 f225 4 stroke outboard Yamaha that breaks up at 4300 rpm won't go past 4300 rpm. The Yamaha dealers haven't been able to fix this issue . New plugs vapor recovery system new injectors . Ne… read more
Charles
Charles
Certified Mercury Tech
5,076 satisfied customers
I have a 1994 yamaha 2 stroke outboard engine. After the boat
I have a 1994 yamaha 2 stroke outboard engine. After the boat warms up a little I can not get over 42RPM. I pulled the plugs and bottom right was a little wet (maybe water??) I changed the water separ… read more
Tan
Tan
MerCruiser Certified Technician
Certified Marine Technician
11,264 satisfied customers
Have a 2002 Yamaha 115HP 4 Stroke. It has been to 2 repair
Have a 2002 Yamaha 115HP 4 Stroke. It has been to 2 repair places, the last one has had it 6 months and cannot find the problem. After it runs for a few minutes and gets warm the RPM's drop to about 3… read more
Charles
Charles
Certified Mercury Tech
5,076 satisfied customers
I have a 99 70 hp 2 stroke 3 cylinder. Carbs have been cleaned,
I have a 99 70 hp 2 stroke 3 cylinder. Carbs have been cleaned, tank cleaned, new plugs and thermostat..It idles high but will start and idle no problem. When I hit 2800 rpms it starts to stutter/ sha… read more
Jason
Jason
Marine Mechanic
18,644 satisfied customers
I have a Sea Hunt Ultra 196 with a Yamaha F115 that has about
I have a Sea Hunt Ultra 196 with a Yamaha F115 that has about 6 hrs in the water. I have followed the owner's manula for break-in period. Everything seemed to be fine until recently when it starts to … read more
Jeremy R.
Jeremy R.
5,362 satisfied customers
2003 johnson 90hp 2 stroke misfires under load. model #j90plstc.
2003 johnson 90hp 2 stroke misfires under load. model #j90plstc. Boat has perfect compression and what looks like a great spark on each cylinder when put clear spark tester on. New fuel water seperato… read more
Tan
Tan
MerCruiser Certified Technician
Certified Marine Technician
11,264 satisfied customers
1999 yamaha f100 TLRX 4 Stroke. I have been having motor hesitation
1999 yamaha f100 TLRX 4 Stroke. I have been having motor hesitation in the intermediate range of the engine. I have had the carbs clean(3 times in less then a month), fuel filters changed, and the gas… read more
Jason
Jason
Marine Mechanic
18,644 satisfied customers
Yamaha 200 vmax series2 mfg.07/07 - had 26 hrs. no problems,
Yamaha 200 vmax series2 mfg.07/07 - had 26 hrs. no problems, let set-up for 5 months. then I took it out,it ran good,but loss of power at 4000 rpm. I figured gas set-up with no additive-put additive i… read more
Captain Dave
Captain Dave
Marine Mechanic
Master's Degree
2,672 satisfied customers
Have twin 200hp Yamaha 1991 ... with in last month each has
Have twin 200hp Yamaha 1991 ... with in last month each has lost power and although run great at lower rpm ... idle etc ... i have lost considerable power and top rpm dropped from 5200 to 4500 and gas… read more
Jason
Jason
Marine Mechanic
18,644 satisfied customers
Have 03 Yamaha 200 EFI 2 stroke on 21bay boat. Motor will
Have 03 Yamaha 200 EFI 2 stroke on 21'bay boat. Motor will randomly stall while crusing, seems to happen more often the higher the RPM. I let idle for 1+ hour in stall never died. Boat has large fuel … read more
Jeremy R.
Jeremy R.
5,362 satisfied customers
i am looking at a 2001 grady white marlin. This boat has twin
i am looking at a 2001 grady white marlin. This boat has twin yamaha V250s with about 300 hours. my questions, are these 4 strokes, are they any good compared to the new yamaha 4 strokes, and to chang… read more
Jeff G.
Jeff G.
Marine Mechanic
Vocational, Technical or Trade Scho
4,729 satisfied customers
I GOT WATER IN CARBS OF 1990 200 HP YAMAHA 2 STROKE OUTBOARD.
I GOT WATER IN CARBS OF 1990 200 HP YAMAHA 2 STROKE OUTBOARD. NEED HELP GETTING OUT WATER AND OR CLEANING CARBS… read more
Jason Forsberg
Jason Forsberg
Outboard Marine Mechanic
Vocational, Technical or Trade Scho
531 satisfied customers
I have a 1999 V6150 Yamaha 2 stroke outboard motor. The motor
I have a 1999 V6150 Yamaha 2 stroke outboard motor. The motor started to miss at high rpm then within a few days started cutting out completely when I reached over 5000 rpm. If I would go back into ne… read more
Jeremy R.
Jeremy R.
5,362 satisfied customers
I have a 2007 Yamaha 200 hp 4 stroke outboard with 143 hours
I have a 2007 Yamaha 200 hp 4 stroke outboard with 143 hours on it. It was fitted to the boat exactly one year ago. The motor is located on a small tropical island 400 miles north of the equator, with… read more
ROCKET
ROCKET
MASTER CERTIFIED TECH
Vocational, Technical or Trade Scho
426 satisfied customers
Yamaha Outboard 2002 F115B is not running smooth on all 4 Cylinder
Have changed spark plugs, spark getting to plugs, fuel pressure above 35, fuel coming out of injectors and added fresh fuel. Operative cylinder seems to change. Was #1 now #3. Sometimes run on all. Ca… read more
TOM
TOM
Vocational, Technical or Trade Scho
196 satisfied customers
I have a 100hp 2 stroke yahama bought new in 2000 which I am
I have a 100hp 2 stroke yahama bought new in 2000 which I am told has a carb set up, all electronic. It is the most terrible cold starting motor you can imagine. A few times it didn't. Even in warm we… read more
Larry B.
Larry B.
Marine Service Tech
High School or GED
574 satisfied customers
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Meet the Experts:

Dominick

Dominick

Marine Mechanic

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

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John White

John White

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Jason

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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