Boat

Have Boat Questions? Ask a Boat Repair Expert.

Ask an Expert,
Get an Answer ASAP!

Boat

I am asking you what is wrong with my boat. THE TACH READS

Customer Question
I am asking you what...
I am asking you what is wrong with my boat.
JA: Sometimes boat issues seem like they'll be really complicated, but end up being easy to fix. The Marine Mechanic I'm going to connect you with knows all the tricks and shortcuts. Tell me a bit more about what's going on so the Marine Mechanic can help you best.
Customer: THE TACH READS DOUBLE (AT 1000RPM THE TACH READS 2000 RPM AT 3000 RPM THE TACH READS 6000 RPM.
JA: Is there anything else important you think the Marine Mechanic should know?
Customer: WHEN THE TACH IS READING WRONG THE ENGINE DOES NOT HAVE THE POWER TO GO ON PLANE.
Submitted: 1 year ago.Category: Boat
Show More
Show Less
Ask Your Own Boat Question
Answered in 6 minutes by:
7/25/2016
Marine Mechanic: Charles, Marine Mechanic replied 1 year ago
Charles
Charles, Marine Mechanic
Category: Boat
Satisfied Customers: 4,036
Experience: US Navy (Ret) Certified Mercury Marine Tech with over a decade of repair experience.
Verified

Hello, my name is***** will assist you.

What engine do you have, and has any work been done to the boat recently?

Ask Your Own Boat Question
Customer reply replied 1 year ago
HI CHARLES: THE 2005 TROPHY WITH A 5.0L MPI MERCRUSER HAS A PROBLEM. WHEN THE TACH IS WORKING RIGHT THE BOAT WILL MAKE PLANE AT 3200 TO 3500 RPM. WHEN THE TACH DOUBLES THE RPM (3000 RPM TO 6000 RPM) THE BOAT MAKES MAX WAKE AND WILL NOT MAKE PLANE AT ALL NO MATTER HOW LONG YOU TRY. THE ENGINE MAY BE MISSING THEN. WHAT IS WRONG? GEORGE
Customer reply replied 1 year ago
THE OUTDRIVE HAS BEEN OFF AND A NEW BEARING INSTALLED BY THE OLD OWNER AND 90 HRS BEFORE A HOUR METER WAS INSTALLED NEAR THE DISTRIBITER. THE OLD OWNER HAD TROUBLE ALINEING THE OUTDRIVE AND ENGINE. I JUST RETURNED FROM A FISHING TRIP WITH THIS BOAT WITH THIS TACH PROBLEM (41 HOURS MORE ON THE HOUR METER). GEORGE
Customer reply replied 1 year ago
THE MERCUISER MODEL# MCM5.0LMPI THE FAMILY # 4M9X05.0GME DOM 2004
Marine Mechanic: Charles, Marine Mechanic replied 1 year ago

Check the ECU on the engine for any loose or broken wires.

Ask Your Own Boat Question
Customer reply replied 1 year ago
HI CHARLES: I CHECKED BOTH CONNECTORS FOR LOOSE OR BROKEN WIRES AND PUSHED BACK PINNS. I HAVE THE "SEL0C" MERCCRUISER BOOK FOR 2001-13 REPAIR MANUAL.
Marine Mechanic: Charles, Marine Mechanic replied 1 year ago

Did you discover any wires that needed attention?

Ask Your Own Boat Question
Customer reply replied 1 year ago
HI CHARLES: NO I DID NOT FIND A PROBLEM WITH THE WIRES OR PINS. I ALSO CHECKED THE DISTRIBITER CAP AND ROTOR AND THEY LOOK NEW. GEORGE
Marine Mechanic: Charles, Marine Mechanic replied 1 year ago

Double check the wiring under the dash.

Ask Your Own Boat Question
Customer reply replied 1 year ago
HI CHARLES: I CHECKED UNDER THE DASH FOR THE TACH AND ALL WIRE WERE TIGHT AND NOT BROKEN. I DID FIND A BAD CONECTION ON ONE OF TWO WIRES THAT CONECT TO THE HOUR METER. THE HOUR METER CONECTS TO A WIRE THAT COMES OUT OF THE COIL AND TO BLACK WIRE ON THE TRASOM. I MOVED THE BLACK WIRE AND THE SPADE CONECTION CAME LOOSE. I RECONNECTED THE SPADE CONNECTION AND WILL PULL THE BOAT OUT OF THE SHOP IN THE AM, CONNECT THE WATER AND START THE ENGINE AND SEE HOW THE TACH READS. GEORGE
Marine Mechanic: Charles, Marine Mechanic replied 1 year ago

Great. Im looking forward to it.

Ask Your Own Boat Question
Customer reply replied 1 year ago
HI CHARLES: WELL I RAN THE TROPHY FOR ABOUT 20 MINS. WITH NO TACH PROBLEMS. THE IDOL WAS ABOUT 600 RPM, TROLE SPEED 1000 RPM AND RAN IT UP TO ABOUT 1500 RPM AND THAT WAS WHAT THE TACH READ. THANKS GEORGE
Marine Mechanic: Charles, Marine Mechanic replied 1 year ago

that is a positive. Would it do this before?

Ask Your Own Boat Question
Ask Charles Your Own Question
Charles
Charles
Charles, Marine Mechanic
Category: Boat
Satisfied Customers: 4,036
4,036 Satisfied Customers
Experience: US Navy (Ret) Certified Mercury Marine Tech with over a decade of repair experience.

Charles is online now

A new question is answered every 9 seconds

How JustAnswer works:

  • Ask an ExpertExperts are full of valuable knowledge and are ready to help with any question. Credentials confirmed by a Fortune 500 verification firm.
  • Get a Professional AnswerVia email, text message, or notification as you wait on our site. Ask follow up questions if you need to.
  • 100% Satisfaction GuaranteeRate the answer you receive.

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:

Dominick

Dominick

Marine Mechanic

1,009 satisfied customers

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

Ted G.

Ted G.

Rigger, Diagnostician

695 satisfied customers

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

John White

John White

Marine Mechanic

306 satisfied customers

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

Jason

Jason

Marine Mechanic

15,782 satisfied customers

Degree in Marine Technology. Gas and diesel marine mechanic.

Tan

Tan

MerCruiser Certified Technician

11,003 satisfied customers

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

Jeff G.

Jeff G.

Marine Mechanic

4,728 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 >

Related Boat Questions
Which standard is maximum power rating calculated to for a
Which standard is maximum power rating calculated to for a Suzuki 150Hp Outboard. Model D150? … read more
Charles
Charles
Marine Mechanic
4,036 satisfied customers
My 1994 200V6 Yamaha outboard run out of oil due to a faulty
My 1994 200V6 Yamaha outboard run out of oil due to a faulty oil level sensor in the outboard tank not activating the oil supplyfrom the filler tank. The motor died while running at 75% speed. It is s… read more
Charles
Charles
Marine Mechanic
4,036 satisfied customers
Need to install a new Throttle Linkage Kit by wednesday. I
Need to install a new Throttle Linkage Kit by wednesday. I have the kit, and understand what the end result should look like but a step by step would be helpful … read more
Charles
Charles
Marine Mechanic
4,036 satisfied customers
Ering a Bertram Purchase and switching from Freshwater Lake
ering a Bertram Purchase and switching from Freshwater Lake usage to Salt Water … read more
Jason
Jason
Marine Mechanic
Vocational, Technical or Trade Scho
15,782 satisfied customers
Flemming from DK here. So now I'm almost done with the
Hi Jason, Flemming from DK here. So now I'm almost done with the wiring on the engine, that you very succesfully helped me with. I'm looking at the switchboard and ignition key now. Quick question, is… read more
Jason
Jason
Marine Mechanic
Vocational, Technical or Trade Scho
15,782 satisfied customers
I have a 1993 Yamaha outboard 2 stroke. Which is only
Hi I have a 1993 Yamaha outboard 2 stroke. Which is only running on two of the three cylinders … read more
Charles
Charles
Marine Mechanic
4,036 satisfied customers
I have recently purchased a second hand boat which has a
I have recently purchased a second hand boat which has a HDS5X fitted but I cannot get the split screen to disappear, could you please give me some advice. … read more
Charles
Charles
Marine Mechanic
4,036 satisfied customers
I have an issue with my 1998 25hp NMO Autolube Yamaha. It
Hi I have an issue with my 1998 25hp NMO Autolube Yamaha. It has a backfire/sneeze on tick over only, it is fine through the rest of the power range. I have taken the carbs off had them fully cleaned … read more
Charles
Charles
Marine Mechanic
4,036 satisfied customers
Iwant to install a bow thruster on my Sea Ray 240 OB, 2015.
Iwant to install a bow thruster on my Sea Ray 240 OB, 2015. Will it work? Do you recommend it? … read more
Charles
Charles
Marine Mechanic
4,036 satisfied customers
Is there a bow thruster that will work on a sea ray 240 sun
Is there a bow thruster that will work on a sea ray 240 sun deck? Can it be installed where boat is stored?… read more
Boat Doc
Boat Doc
144 satisfied customers
I've got a 2006 5.0 mpi with 500 hrs on it. It had new
I've got a 2006 5.0 mpi with 500 hrs on it. It had new manifolds and risers 12 months ago, 40 hours use since. Have noticed rough idle and needs a bit of throttle to start, then low power on take off … read more
Boat Doc
Boat Doc
144 satisfied customers
I have to change the hydraulic trim/tilt pump on my 50 hp
I have to change the hydraulic trim/tilt pump on my 50 hp mercury, will I have to remove the motor from the boat to do it? … read more
Jason
Jason
Marine Mechanic
Vocational, Technical or Trade Scho
15,782 satisfied customers
Slow cranking then will crank normily be for starting. Some
slow cranking then will crank normily be for starting … read more
Jason
Jason
Marine Mechanic
Vocational, Technical or Trade Scho
15,782 satisfied customers
Do you have to remove engine on invader inbd /outbd
do you have to remove engine on invader inbd /outbd merccruiser engine to replace starter … read more
Charles
Charles
Marine Mechanic
4,036 satisfied customers
I have an 8 horsepower Honda outboard motor that I have just
Hi I have an 8 horsepower Honda outboard motor that I have just swapped over to my pontoon boat and I'm having a problem with the alarm going off when I'm putting them in the back together I got every… read more
Jason
Jason
Marine Mechanic
Vocational, Technical or Trade Scho
15,782 satisfied customers
I have a 130hp v4 that runs and idles but when you put it
I have a 130hp johnson v4 that runs and idles but when you put it gear it and rev it up it brakes down and back fires any sugestion would be greatfull regards gary… read more
Charles
Charles
Marine Mechanic
4,036 satisfied customers
I have a volvo penta v6 4.3 gas 1999. My volvo dealer just
I have a volvo penta v6 4.3 gas 1999. My volvo dealer just sold me a set of aluminum anodes part #(###) ###-#### and (###) ###-####for my out drive. my question is, is that correct??? My boat is in sa… read more
Charles
Charles
Marine Mechanic
4,036 satisfied customers
My Edgewater 17 has a Yamaha 115 outboard when I turn on the
My Edgewater 17 has a Yamaha 115 outboard when I turn on the ignition it's starts up okay but the buzzer doesn't shut offR … read more
Charles
Charles
Marine Mechanic
4,036 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.

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