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The 350 mag mpi wont start without throttle up about an inch
the 350 mag mpi wont start without throttle up about an inch at the shift handle. i replaced IAC but that did not work. I removed iac from engine and it started up without throttle up. i plugged in ne… read more
Noel Schembri
Noel Schembri
Marine mechanic
Diploma
1,741 satisfied customers
Hallo! I got a problem with the alarmbox on my Mercruiser
Hallo ! I got a problem with the alarmbox on my Mercruiser 350 MAG MPI , it does not give any alarms anymore . Not even the 2 beeps it should give when energizeing the engine system . Further more it … read more
Jason
Jason
Marine Mechanic
Vocational, Technical or Trade Scho
18,660 satisfied customers
I own a 2005 Sea Ray Sundeck 240 with a 5.0 Merc. I have a
I own a 2005 Sea Ray Sundeck 240 with a 5.0 Merc. I have a low rpm vibration and the stalls at under 950 rpm. Props look fine. Need some direction as to what to do to determine problem.… read more
Jason
Jason
Marine Mechanic
Vocational, Technical or Trade Scho
18,660 satisfied customers
I have a 2005 Mercruiser Magnum MPI with the SmartCraft
I have a 2005 Mercruiser Magnum MPI with the SmartCraft system. I get a continuous engine alarm when throttling up above 1500-2000 RPM. Alarm goes of when throttle reduced to idle. All dash gauges hav… read more
Michael
Michael
master marine technician/charter captain
Vocational, Technical or Trade Scho
256 satisfied customers
Chaparral 216SSI 350 MAG MPI 49-50 MPH on GPS 4900 RPM. How
Chaparral 216SSI 350 MAG MPI 49-50 MPH on GPS 4900 RPM. How can I tell if my engine is running at it's full potential. I would think a boat of this size and horsepower would perform better. Not hittin… read more
Jason
Jason
Marine Mechanic
Vocational, Technical or Trade Scho
18,660 satisfied customers
I have a Mercruiser 7.4L MPI coupled with Bravo III Sterndrive. While
I have a Mercruiser 7.4L MPI coupled with Bravo III Sterndrive. While sea-trialing the other day, boat ran fine until we ran it till 3000 RPM, in which it suddenly stalled. Boat could crank over but d… read more
Malta Tech
Malta Tech
Marine Tech
High School or GED
287 satisfied customers
I have a clunking sound when I put the gear into forward but
I have a clunking sound when I put the drive gears into forward but not reverse. it seems not to catch and when it does it is at a higher rev than preferred the leg is a Mercury Transom with a MerCrui… read more
Jason
Jason
Marine Mechanic
Vocational, Technical or Trade Scho
18,660 satisfied customers
I have a 2005 merc, mag 350 mpi with bravo one outdrive. The
I have a 2005 merc, mag 350 mpi with bravo one outdrive. The engine will not start with the throttle all the way down, I have to move it up a little bit (seperate levers, one for throttle one for gear… read more
orcamarine
orcamarine
Proprietor
Vocational, Technical or Trade Scho
7 satisfied customers
I have a 1996 Malibu Sunsetter with a 350 mercruiser black
I have a 1996 Malibu Sunsetter with a 350 mercruiser black scorpion EFI engine. The engine has an unstable idle with some surging and stalls when throttle is increased. The engine seems to run OK at h… read more
Tan
Tan
MerCruiser Certified Technician
Certified Marine Technician
11,264 satisfied customers
I have two Crusader inboard 2001 MPI HO 5.7L V8s. The port
I have two Crusader inboard 2001 MPI HO 5.7L V8's. The port engine is having problems and keeps stalling. After multiple attempts, I have to run it at a higher rpm to keep it from stalling out. When I… read more
Tan
Tan
MerCruiser Certified Technician
Certified Marine Technician
11,264 satisfied customers
2000 tige 21 I w/ merc gm 350 mpi mag, have intermintant high
2000 tig'e 21 I w/ merc gm 350 mpi mag, have intermintant high idle runs rich when acting up.… read more
Tan
Tan
MerCruiser Certified Technician
Certified Marine Technician
11,264 satisfied customers
We have a 3800lb 24 openbow with a 350 Mag Bravo 3 26 pitch.
We have a 3800lb 24' openbow with a 350 Mag Bravo 3 26" pitch. With a medium load its a little sluggish getting up on plane. I am thinking about going to a Bravo 3 XR 25" pitch. Do you think this will… read more
Tan
Tan
MerCruiser Certified Technician
Certified Marine Technician
11,264 satisfied customers
I have a 2000 chaparral with twin mercury 350 i/os all season
I have a 2000 chaparral with twin mercury 350 i/o's all season I have been hearing a long beeping sound , with a drop in the RPM's on the port side engine. My mechanic had changed the fuel pump, manif… read more
capt ron 1959
capt ron 1959
Owner/Marine Mechanic
Vocational, Technical or Trade Scho
348 satisfied customers
I have a Mercruiser 6.2 mpi, 2002 year model. When running
I have a Mercruiser 6.2 mpi, 2002 year model. When running at slow speeds - 10 mph and under, and when in neutral, I get a fluctuation in rpm's. Like it is lacking fuel or air. But when running at hig… read more
Pappy's Sales and Service
Pappy's Sales and Service
Vocational, Technical or Trade Scho
586 satisfied customers
I have a 1998 Mariah 214 Jubilee with a 350 mag V-8 5.7 litre,
I have a 1998 Mariah 214 Jubilee with a 350 mag V-8 5.7 litre, bravo III with dual 28 pitch props. The engine runs smooth, never hesitates to start when you touch the switch and does not cut out or ru… read more
mercmastertech
mercmastertech
Service Manager, Master technician
Technical School
249 satisfied customers
I have a 2002 Mercruiser Mag 350 MPI with a Bravo III drive. I
I have a 2002 Mercruiser Mag 350 MPI with a Bravo III drive. I boat sounded 2 beeps and the engine died (at wake speed) I though it was out of gas (guage scetchy) so in goes 30 gallons. Boat will star… read more
ROCKET
ROCKET
MASTER CERTIFIED TECH
Vocational, Technical or Trade Scho
426 satisfied customers
I have a 2003 Maxum with twin Mercursier 350 Mag MPI - Bravo
I have a 2003 Maxum with twin Mercursier 350 Mag MPI - Bravo 3's in which I am have an intermitent alarm (2 beeps every minute). The alaram begins as soon as the engine is started. Gear lub reservior … read more
ROCKET
ROCKET
MASTER CERTIFIED TECH
Vocational, Technical or Trade Scho
426 satisfied customers
I have 2002 6.2L with a bravo 3. Engine starts and runs great
I have 2002 6.2L with a bravo 3. Engine starts and runs great until it is up to full operating temp. Then it hesitates and idles extremly rough and will even die, however if it will throttle up it sti… read more
Pappy's Sales and Service
Pappy's Sales and Service
Vocational, Technical or Trade Scho
586 satisfied customers
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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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