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2003 5.7 Volvo Penta. Boat was running great, we stopped for
2003 5.7 Volvo Penta. Boat was running great, we stopped for a quick lunch. Pulling away from the docks slightly above idle. Starboard engine felt like it was cutting out and back in. I looked at the … read more
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Dieseljunky2
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Am trying to determine what propeller I should use on my
Am trying to determine what propeller I should use on my 2002 Searay 340 Amberjack. It is now is in freshwater. It seems to not have much reaction when I am docking. Seems not to grab. Believeoriginal… read more
Ted G.
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I have twin 350 mag horizons, 1 motor is showing 35+psi on
I have twin 350 mag horizons, 1 motor is showing 35+psi on the water pressure gauge … read more
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I have just sea trialed new 300 four stroke yamahas two station
I have just sea trialed new 300 four stroke yamahas two station controls evreything works fine but at 4000 + rpms ,the starboard motor shuts off. Ive run it with just two motors in every combination i… read more
Charles
Charles
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On a 350 carbed mercrusier, both waterpumps just replaced,
On a 350 carbed mercrusier, both waterpumps just replaced, runs hot ,sets off alarm after 45 mins at idle 700 rpms. Boat is in water, cools down to 170 after running 2000 rpms for about 4-5 mins. Shou… read more
Tan
Tan
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2008 Searay 290 Amberjack, 230 hours, titled in 2010 with 3
2008 Searay 290 Amberjack, 230 hours, titled in 2010 with 3 summer seasons, Mercruiser 350 MAG/MPI Bravo 3 twin engine. Stbd engine burning 20% more fuel than Port. At 3600 RPM, Stbd 15.7 gal/hr, Port… read more
Jason
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2001 Starboard 150HPDI engine ran smooth throughout the power
2001 Starboard 150HPDI engine ran smooth throughout the power ranges but faltered and quit. Returned home on Port engine. while at dock, the Starboard engine idles shakey between 300-400 rpm rather th… read more
orcamarine
orcamarine
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Hi, I have a 2006 Searay Amberjack 290 with twin T-VD-350 Mercruiser
Hi, I have a 2006 Searay Amberjack 290 with twin T-VD-350 Mercruiser Marnum MPI Horizon engines (T-300 hp). It is inboard/v-drive, fuel injected, and has the Mercruiser Smart Craft System. The engines… read more
Ted G.
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i have a 1994 four winns 190 horizon with OMC Cobra 5.0l ford
i have a 1994 four winns 190 horizon with OMC Cobra 5.0l ford EFI multi port, it runs great for about 20 minutes, then it just cuts out, some times i can throtle back and it catchs and starts to come … read more
briggs archer
briggs archer
master marine mechanic
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I ran my boat across the bay two days ago. An alarm started
I ran my boat across the bay two days ago. An alarm started to sound. Intermittent beeps followed by a constant beep. I opened the engine compartment and noticed the port engine rocking as if the moto… read more
James
James
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Vocational, Technical or Trade Scho
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I have almost the same problem. I have a 2006 amberjack with
I have almost the same problem. I have a 2006 amberjack with dual 350 magnums, around 100 hours on both engines. I was trolling for about 30 minutes around 2500 rpm to 3000 rpm. I lowered the rpm to a… read more
Tan
Tan
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Can a motor slip at high RPM level when it is engaged/with
Can a motor "slip" at high RPM level when it is engaged/with a load on it? *I have two recently rebuilt MERCRUISER big block engines *I took out my boat, a 1987 35 foot SeaRay this afternoon *At 3200 … read more
shane j forrest
shane j forrest
Vocational, Technical or Trade Scho
270 satisfied customers
I just had 36 gals of diesel fuel pumped into one (starboard)
I just had 36 gals of diesel fuel pumped into one (starboard) of my 125 gal tanks by mistake. The fuel dock manager recovered about 60 gals of fuel and refilled my tank at no cost to me. However, afte… read more
shane j forrest
shane j forrest
Vocational, Technical or Trade Scho
270 satisfied customers
I have two 8.1 Horizon inboard engines in my 2001 34 foot Searay
I have two 8.1 Horizon inboard engines in my 2001 34 foot Searay Amberjack. When I raise the RPM speed to about 2400 the port engine starts to backfire, I changed the plugs and gaped them correctly. I… read more
ROCKET
ROCKET
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I have a searay 360 with dual Horizon 8.1S engines. On third
I have a searay 360 with dual Horizon 8.1S engines. On third outing of season (approx total of 3-4 engine hours of no problems), took a trip of 24 miles this past weekend. After 20 miles at 3300 rpm,(… read more
gearheadII
gearheadII
Bachelor's Degree
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I have a 1997 33 searay. twin 454 mpi 340 hp. The starboard
I have a 1997 33 searay. twin 454 mpi 340 hp. The starboard tops out at 3200 rpms and with the computer from merc crusier shows the throttlebody is fully open. The port has all kinds of power to spare… read more
Mechman45
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I have a 2001 Rinker 340 FV with twin FWC 6.2 Mercs / Bravo
I have a 2001 Rinker 340 FV with twin FWC 6.2 Mercs / Bravo III drives. I had the duo props removed for service over the winter. Now the boat will barely plane. It bogs down at 3000 rpms and slowly ch… read more
ROCKET
ROCKET
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Vocational, Technical or Trade Scho
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my volvo penta 4.3 engine is overheating at high rpms. Gauges
my volvo penta 4.3 engine is overheating at high rpms. Gauges are fine, and nothing appears wrong at idle or up to about 3000 rpm. But after my spring tune up (fuel filter, oil change, new plugs, new … read more
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ROCKET
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Ted G.

Ted G.

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Jason

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Tan

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Jeff G.

Jeff G.

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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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