Boat

Have Boat Questions? Ask a Boat Repair Expert.

Connect one-on-one with {0} who will answer your question

Related Boat Questions
1997 SeaRay 37 Sedan Bridge, twin mercruiser 7.4 MPI. Port
1997 SeaRay 37 Sedan Bridge, twin mercruiser 7.4 MPI. Port engine top overhaul/starboard full overhaul. Cannot get more than 32-3400 rpm under load. Have at least 25% more throttle movement with no en… read more
Charles
Charles
Certified Mercury Tech
5,752 satisfied customers
7.4 1997 Chevrolet MPI engine will only get 3800 rpm, found
7.4 cid 1997 Chevrolet MPI engine will only get 3800 rpm, found low psi on fuel pump and replaced fuel pump which improved rpm only 600 rpm to 3800. Prior rpm was only 3200. Scan tool shows no codes. … read more
Jason
Jason
Marine Mechanic
Vocational, Technical or Trade School
23,004 satisfied customers
I have a 2014 Formula 350cbr with twin Mercruiser 8.1 I/Os.
I have a 2014 Formula 350cbr with twin Mercruiser 8.1 I/Os. A few days ago Starboard engine cut out while at cruising speed and won't restart. It cranks fine, sounds like it's not getting any gas. I w… read more
Jason
Jason
Marine Mechanic
Vocational, Technical or Trade School
23,004 satisfied customers
1999 Merc 454 Horizion wont turn over 3200 RPM under load
I have a 1999 37' Searay Sundancer with twin Merc 454 Horizion MPI that I have been struggling with the SB engine not turning up RPMs over 3200 WOT under load. Between 70% Throttle & WOT, port engine … read more
Expert
Expert
Sir, I have twin 2010 8.1S Mercruiser inboards in a 1997 Formula
Sir, I have twin 2010 8.1S Mercruiser inboards in a 1997 Formula PC34. The Port engine runs up to 4400 RPM which is perfect. The Starboard engine runs slowly to 3800 RPM. Asked my diver to check the p… read more
Noel Schembri
Noel Schembri
Marine mechanic
Diploma
2,668 satisfied customers
I have a 1999 Formula 33, twin engine. My stbd. engine started
I have a 1999 Formula 33, twin engine. My stbd. engine started to not sound right, the RPM's are jumping up and down and the buzzer at the key is beeping. All of the gages are where they are suposed t… read more
Joe
Joe
Owner Kingsland Auto & Marine Services
Vocational, Technical or Trade Scho
1,396 satisfied customers
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
Jason
Marine Mechanic
Vocational, Technical or Trade School
23,004 satisfied customers
I own a 2008 SeaRay 290 Amberjack with twin Mercruiser 350
I own a 2008 SeaRay 290 Amberjack with twin Mercruiser 350 MAG MPI engines. Full Tune Up each year in Spring (New Jersey) with plugs, cap, rotor. Approx 230 hrs. Fuel burn is approximately 20% higher … read more
orcamarine
orcamarine
Proprietor
Vocational, Technical or Trade Scho
7 satisfied customers
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.
Ted G.
Rigger, Diagnostician
Vocational, Technical or Trade Scho
2,678 satisfied customers
Good evening, I have a 2002 Silverton 352 with twin Mercruiser
Good evening, I have a 2002 Silverton 352 with twin Mercruiser 8.1 Horizons. 370 hours. Boat runs excellent. Port engine lately will not achieve rpm over 3700. Starboard will WOT at 4150. The throttle… read more
Ted G.
Ted G.
Rigger, Diagnostician
Vocational, Technical or Trade Scho
2,678 satisfied customers
I have twin turbo charged Detroit 671s (1990)in my 56 Ocean
I have twin turbo charged Detroit 671s (1990)in my 56 Ocean CPMY. They have about 2200 hours on them and were rebuilt 2 years ago. My port engine oil pressure drops around 34 or 35 PSI after the engin… read more
Jason
Jason
Marine Mechanic
Vocational, Technical or Trade School
23,004 satisfied customers
I have a 2003 Mercruiser Mag 350 serial OM587340. Engine idles
I have a 2003 Mercruiser Mag 350 serial OM587340. Engine idles fine and runs well at 3000-3500 rpm for 5-10 min. Engine then bogs/hiccups and will not maintain rpms. Changed fuel/water separator and f… read more
James
James
Certified Marine Mechanic
Vocational, Technical or Trade Scho
4,094 satisfied customers
have searay 38SS w/ 502 MPIs-280 hours-port engine at sustained
have searay 38SS w/ 502 MPI's-280 hours-port engine at sustained cruise rpm (3200-3600) pulls the syncro guage off center and the eng will then gain or lose 100 or so rpm; instantly noticeable in the … read more
capt ron 1959
capt ron 1959
Owner/Marine Mechanic
Vocational, Technical or Trade Scho
348 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
Owner/Marine Mechanic
Vocational, Technical or Trade Scho
348 satisfied customers
I have a boat with twin 300 Mercruiser Horizon MPIs . The
I have a boat with twin 300 Mercruiser Horizon MPI's . The throttles are never even between the two engines. The port motor always requires more throttle to achieve equal rpms. I verified that the thr… read more
ROCKET
ROCKET
MASTER CERTIFIED TECH
Vocational, Technical or Trade Scho
426 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
MASTER CERTIFIED TECH
Vocational, Technical or Trade Scho
426 satisfied customers
I have a 1979 bertram 28 with twin 1995 260hp mercruisers,
I have a 1979 bertram 28 with twin 1995 260hp mercruisers, at idle and cruise both engines run great, but after 3500rpm the port engine struggles to excel anymore, and only reaches about 3800rpm the p… read more
Captain Dave
Captain Dave
Marine Mechanic
Master's Degree
2,672 satisfied customers
I have a 2001 340 searay with twin 8.1 horison 380hp ...
I have a 2001 340 searay with twin 8.1 horison 380hp v-drive engines. the port will only run constantly at 3200 rpm after a little bit you can throttle up to about 39 to 39 rpm and the she dies to abo… read more
Captain Dave
Captain Dave
Marine Mechanic
Master's Degree
2,672 satisfied customers
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.

JustAnswer in the News:

Ask-a-doc Web sites: If you've got a quick question, you can try to get an answer from sites that say they have various specialists on hand to give quick answers... Justanswer.com.
JustAnswer.com...has seen a spike since October in legal questions from readers about layoffs, unemployment and severance.
Web sites like justanswer.com/legal
...leave nothing to chance.
Traffic on JustAnswer rose 14 percent...and had nearly 400,000 page views in 30 days...inquiries related to stress, high blood pressure, drinking and heart pain jumped 33 percent.
Tory Johnson, GMA Workplace Contributor, discusses work-from-home jobs, such as JustAnswer in which verified Experts answer people’s questions.
I will tell you that...the things you have to go through to be an Expert are quite rigorous.

What Customers are Saying:

Wonderful service, prompt, efficient, and accurate. Couldn't have asked for more. I cannot thank you enough for your help.

Mary C.Freshfield, Liverpool, UK

This expert is wonderful. They truly know what they are talking about, and they actually care about you. They really helped put my nerves at ease. Thank you so much!!!!

AlexLos Angeles, CA

Thank you for all your help. It is nice to know that this service is here for people like myself, who need answers fast and are not sure who to consult.

GPHesperia, CA

I couldn't be more satisfied! This is the site I will always come to when I need a second opinion.

JustinKernersville, NC

Just let me say that this encounter has been entirely professional and most helpful. I liked that I could ask additional questions and get answered in a very short turn around.

EstherWoodstock, NY

Thank you so much for taking your time and knowledge to support my concerns. Not only did you answer my questions, you even took it a step further with replying with more pertinent information I needed to know.

RobinElkton, Maryland

He answered my question promptly and gave me accurate, detailed information. If all of your experts are half as good, you have a great thing going here.

DianeDallas, TX

< Previous | Next >

Meet the Experts:

Ted G.

Ted G.

Rigger, Diagnostician

2,678 satisfied customers

40 years boating, Safe boating instruct., Offshore Race promoter, Failure Analysis, Expert Witness

Dominick

Dominick

Marine Mechanic

1,009 satisfied customers

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

John White

John White

Marine Mechanic

306 satisfied customers

11 years experience working on outboards, inboards, sterndrives & pwcs

Jason

Jason

Marine Mechanic

23,004 satisfied customers

Degree in Marine Technology. Gas and diesel marine mechanic.

Tan

Tan

MerCruiser Certified Technician

11,409 satisfied customers

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

Jeff G.

Jeff G.

Marine Mechanic

4,730 satisfied customers

42 years experience, Certified Master Technician, All Major Outboards, Sterndrives, Hi-Performance

Captain Dave

Captain Dave

Marine Mechanic

2,672 satisfied customers

USCG Licensed Captain, 20+ Years Boating, Fishing, Maintenance and Repair Experience

< Previous | Next >

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.

Show MoreShow Less

Ask Your Question

x