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Mercruiser 5.7 350 MAG EFI....... Trying to trouble shoot
Second opinion] Mercruiser 5.7 350 MAG EFI....... Trying to trouble shoot why engine flooding at all times when running. With the engine not running,the throttle lever in neutral, I can push lever for… read more
Ted G.
Ted G.
Sales Manager
Vocational, Technical or Trade Scho
5,629 satisfied customers
I'm requesting if he's available. I'm still on my one week
I'm requesting Jason if he's available. I'm still on my one week trial. I have a 1994 Searay 180 with a Mercruiser 4.3 L Alpha one engine. As I told Jason with my last question, the boat was totally u… read more
Jason
Jason
Marine Mechanic
Vocational, Technical or Trade School
650 satisfied customers
I have a 95 chaparral sunesta 250 with a mercruiser 454 and
I have a 95 chaparral sunesta 250 with a mercruiser 454 and bravo 3. Runs rich at idle (smell gas), I think it has a weber (electric choke, 2 adjustments screws on front). Runs good at speed. If dies … read more
Jason
Jason
Marine Mechanic
Vocational, Technical or Trade School
650 satisfied customers
350 Mercruser 2010, get an alarm that throttle position
Hello , 350 Mercruser 2010 , get an alarm that throttle position sensor is faulty. Ordered new sensor but there appears to be a cap on the side of the throttle body. Can't seem to find a way to open t… read more
Jason
Jason
Marine Mechanic
Vocational, Technical or Trade School
650 satisfied customers
97 75hp Mercury O/, lacks power & vibrates boat under load.
97 75hp Mercury O/B, lacks power & vibrates boat under load. Its mounted on a 24' Kayot pontoon flat deck boat. It used to cruiose @ about 25mph, but now w/engine issue, I can only get to about 12mph … read more
Boat Doc
Boat Doc
253 satisfied customers
Second opinion] 1973 6hp O/ (M# 6R-73S), Running on 50:1
Second opinion] 1973 6hp Johnson O/B (M# *****), Running on 50:1 mix, wont idle---stumbles, misses, stalls any lower than 1/8" before the start position on the throttle/tiller handle, but runs ok/good… read more
Charles
Charles
Certified Mercury Tech
5,633 satisfied customers
1973 6hp O/ (M# 6R-73S), Running on 50:1 mix, wont
1973 6hp Johnson O/B (M# *****), Running on 50:1 mix, wont idle---stumbles, misses, stalls any lower than 1/8" before the start position on the throttle/tiller handle, but runs ok/good frt start posit… read more
Tan
Tan
MerCruiser Certified Technician
Certified Marine Technician
91 satisfied customers
I have a 2005 Yamaha F225 that idles at 850 - 900 RPM's
I have a 2005 Yamaha F225 that idles at 850 - 900 RPM's should be at 500 - 600 RPM's. Tried the idle screw no change. I have checked the TPS it is within its parameters, we have started from square on… read more
Jason
Jason
Marine Mechanic
Vocational, Technical or Trade School
650 satisfied customers
I have a problem with my 2005 Mercury 4 stroke outboard. It
Hi, I have a problem with my 2005 Mercury 4 stroke outboard. It idles to high. Idle vary from 900 - 1150 RPM. I have checked the ECT sensor. Resistance is according to chart. I have also checked the r… read more
Jason
Jason
Marine Mechanic
Vocational, Technical or Trade School
650 satisfied customers
I have a 1986 70 HP that runs great in gear, but won't idle.
I have a 1986 johnson 70 HP that runs great in gear, but won't idle. Motor was recently rebuilt and all carbs have been overhauled and we'll cleaned. Motor idles fine on the muffs, but will stall out … read more
Tan
Tan
MerCruiser Certified Technician
Certified Marine Technician
91 satisfied customers
I have a suz 2005 70 hp 4 stroke outboard. check engine
I have a suz 2005 70 hp 4 stroke outboard. check engine light flashes 3+1 What does this mean? It will idle, but not run fast … read more
Jason
Jason
Marine Mechanic
Vocational, Technical or Trade School
650 satisfied customers
I have 3 year old 4 cycle 2.5 hp mercury outboard.great
I have 3 year old 4 cycle 2.5 hp mercury outboard.great engine when i used it 3 yrs ago. shut it down for 2 years and never drained fuel.. couldn't start it. disassembled carb , cleaned it thoroughly,… read more
Jason
Jason
Marine Mechanic
Vocational, Technical or Trade School
650 satisfied customers
Here is some story. The battery on the boat (Yamaha 4 stroke
Here is some history. The battery on the boat (Yamaha 4 stroke 115 horse) was not fully charged. We ran the battery down trying to start it. But it was trying to start. We pulled the boat out of the w… read more
Jason
Jason
Marine Mechanic
Vocational, Technical or Trade School
650 satisfied customers
I am having an overheating issue with a Yamaha 150
I am having an overheating issue with a Yamaha 150 fourstroke. Have changed the water pump and housing, the thermostat, and pressure relief valve. Engine is still running at around 180 degrees… read more
Jason
Jason
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Vocational, Technical or Trade School
650 satisfied customers
We ran out of oil while driving the boat last weekend. It's
We ran out of oil while driving the boat last weekend. It's an older boat, so the horn didn't sound off as the oil was depleting. After getting oil into the motor we were able to get the boat running … read more
Jason
Jason
Marine Mechanic
Vocational, Technical or Trade School
650 satisfied customers
Hello I have been getting a miss on my mercruiser 350 MAG
Hello I have been getting a miss on my mercruiser 350 MAG MPI towsport engine at about 3600RPM approx. My mate has the same engine so I have been able to connect my Rida software to it and compare rea… read more
Jason
Jason
Marine Mechanic
Vocational, Technical or Trade School
650 satisfied customers
Hello I have a problem with the engine on a boat recently
Hello I have a problem with the engine on a boat recently purchased used.: Sea Hawk 7.3 m ; engine YANMAR 6BY 220 Z N° 0063 047 162 KW à 4000 t/min year 2007 At startup, the display shows "Check Engin… read more
KKassel
KKassel
OWNER
High School or GED
52 satisfied customers
Ive got a 2000 Mercruiser 350 MPI inboard that has a high
I've got a 2000 Mercruiser 350 MPI inboard that has a high idle at start up (2,000 rpm). All of the throttle linkages appear fine and the arm on throttle cable is bottomed out. I'm leaning towards an … read more
Noel Schembri
Noel Schembri
Marine Technician
Diploma
2,079 satisfied customers
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Meet the Experts:

Jason

Jason

Marine Mechanic

650 satisfied customers

Degree in Marine Technology, Also Certified with Mercury Marine, MCM, MIE, VP, Yamaha, Honda, Suzuki

Captain Dave

Captain Dave

USCG Licensed Captain

136 satisfied customers

Over 20 years experience installing, maintaining, and using sophisticated marine electronics.

Tan

Tan

MerCruiser Certified Technician

91 satisfied customers

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

Neil

Neil

Marine Electronics Dealer

76 satisfied customers

NZCE Electronics and Computing

Ropesmarine

Ropesmarine

Boat Enthusiast

70 satisfied customers

13+ years of installing and troubleshooting, FCC License with radar endorsment, CMET

Noel Schembri

Noel Schembri

Marine Technician

2,079 satisfied customers

Marine mechanic / electrical technician

yachtwork

yachtwork

Marine Engineer

35 satisfied customers

Yachtmaster Ocean & MEC3

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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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