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I have a Sea Ray 230 select. 6.2 liter mercruiser. I have no
I have a Sea Ray 230 select. 6.2 liter mercruiser. I have no power to the gauges or starter. When I turn the key you can hear power going to the engine but nothing else. If you pull the starter relay … read more
Charles
Charles
Certified Mercury Tech
5,206 satisfied customers
I have a cruisers rogue with two mercruisers 5.0 engines. IT
I have a cruisers rogue with two mercruisers 5.0 engines. IT lacks t power one engine goes flat on torque at 4000 RPM … read more
Jason
Jason
Marine Mechanic
Vocational, Technical or Trade Scho
18,277 satisfied customers
1999 mercruiser 5.0 with an alpha 1 outdrive, when at full
1999 mercruiser 5.0 with an alpha 1 outdrive, when at full throttle the motor sputters and won't get up on plane … read more
Jason
Jason
Marine Mechanic
Vocational, Technical or Trade Scho
18,277 satisfied customers
I have a 135 HP 1998 alpha one 4 cylinder Mercruiser that
I have a 135 HP 1998 alpha one 4 cylinder Mercruiser that seems to be running a little ruff and seems choked down. Seems to rev up normal but will only go half speed like stuck in a lower gear. It ran… read more
Jason
Jason
Marine Mechanic
Vocational, Technical or Trade Scho
18,277 satisfied customers
1999 MERCUSER MPI. RUN GREAT. RUN COOL. GOOD OIL PRESSURE. I
1999 MERCUSER MPI. RUN GREAT. RUN COOL. GOOD OIL PRESSURE. I CAN SYNC EM TO JUST OVER 3000 RPM. AFTER THAT I GET NO MORE RPM OUT OF 1 ENGINE. THE THROTTLES ARE EVEN TILL THEN. ONE ENGINE WILL COTINUE … read more
Jason
Jason
Marine Mechanic
Vocational, Technical or Trade Scho
18,277 satisfied customers
I have a 6.2 mercruiser horizon and bravo 2 sterndrive, i
I have a 6.2 mercruiser horizon and bravo 2 sterndrive, i haven't used it for a few months and today i replaced the starter motor the motor cranked over first time but the prop was turning?? I tried t… read more
Jason
Jason
Marine Mechanic
Vocational, Technical or Trade Scho
18,277 satisfied customers
My 1999 searay misses on starboard engine over 3000 ive
my 1999 searay misses on starboard engine over 3000 ive tried everthing i can think of with no sucess … read more
Jason
Jason
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Vocational, Technical or Trade Scho
18,277 satisfied customers
Hi. I have a Mariner 50 hp 4 s. year 1999. My problem is that
Hi. I have a Mariner 50 hp 4 s. year 1999. My problem is that the engine will not run more than 3000 rpm. there is an solenoid coil in front of the carburetors. should it pull the carbs. inlet all the… read more
Charles
Charles
Certified Mercury Tech
5,206 satisfied customers
Until this summer I my power steering ran flawlessly. I
Until this summer I my power steering ran flawlessly. I am having a problem now with my power steering on my 1993 Alpha 1 mercruiser. I was running at high speed (4,000+ RPM's) and heard a loud thump.… read more
Jason
Jason
Marine Mechanic
Vocational, Technical or Trade Scho
18,277 satisfied customers
I have a 2004 Sea Ray 390 Motor Yacht with Mercruiser 8.1 liter
I have a 2004 Sea Ray 390 Motor Yacht with Mercruiser 8.1 liter Horizons. I am only getting 4,000 RPM at max power. I had the props reconditioned and new 41-983 plugs installed. On the first run after… read more
Jason
Jason
Marine Mechanic
Vocational, Technical or Trade Scho
18,277 satisfied customers
Hit a rock now engine runs at higher RPM. This increase
Hit a rock now engine runs at higher RPM. This increase in RPM is when in neutral or in gear ( not prop related ) Before when idling in neutral was running aroun 850 RPM nopw its running at about 1400… read more
James
James
Certified Marine Mechanic
Vocational, Technical or Trade Scho
4,094 satisfied customers
I have a 2005 Mercruiser 350 MAG MPI with a Bravo III drive.
I have a 2005 Mercruiser 350 MAG MPI with a Bravo III drive. After launching 2 weeks ago, I ran it in the bay at all speeds for 1/2 hr. and it ran fine. The other day I started it up at the dock and n… read more
James
James
Certified Marine Mechanic
Vocational, Technical or Trade Scho
4,094 satisfied customers
have a rebuild 454 mercruiser that stalls out everytime the
have a rebuild 454 mercruiser that stalls out everytime the rpms go below 2000 change out the injectors,electronics,fuel pump, fuel filters,checked timing. had three different mercruiser mechanics loo… read more
capt ron 1959
capt ron 1959
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I have a 1989 4.3litre Mercruiser engine. Starts fine, idles
I have a 1989 4.3litre Mercruiser engine. Starts fine, idles a little rough and under zero load, will rev up to 5000 rpm without a hiccup. It 'barks' pretty good. BUT....as soon as I place it in gear … read more
Captain Dave
Captain Dave
Marine Mechanic
Master's Degree
2,672 satisfied customers
I recently caught air when I hit a large wake, the prop came
I recently caught air when I hit a large wake, the prop came out of the water. I'm not sure where the rpms came up to at that point. Once we came down I decided to slow down for the rest of the day. W… read more
ROCKET
ROCKET
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Vocational, Technical or Trade Scho
426 satisfied customers
Mercruiser 5.7 FI runs great all day. At end of day motor losses
Mercruiser 5.7 FI runs great all day. At end of day motor losses power pings, clanks, and backfires then dies and wont re start. If i wait 10 to 15 minutes it starts & runs great again for hours.???? … read more
ROCKET
ROCKET
MASTER CERTIFIED TECH
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I have one engine that ran fine 2 days ago. Yesterday the engine
I have one engine that ran fine 2 days ago. Yesterday the engine would only reach 2900 RPM then sputter, knock, and drop off. This got progressively worse as the day went on 2500, 2300, 1800, 1500, an… read more
ROCKET
ROCKET
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Vocational, Technical or Trade Scho
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2004 Mercruiser 5.0 liter Model MCM. Runs in idle. Stalls ...
2004 Mercruiser 5.0 liter Model MCM. Runs in idle. Stalls when put in forward or reverse. Runs fine at high speed. No power at idle speed.… read more
Captain Dave
Captain Dave
Marine Mechanic
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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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