Boat

Have Boat Questions? Ask a Boat Repair Expert.

Ask an Expert,
Get an Answer ASAP!

This answer was rated:

Bogging down once on place, *plane, 1989 Yamaha 225 Excel…

Bogging down once on...

Bogging down once on place

Mechanic's Assistant: Sometimes things that you think will be really complicated 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.

*plane

Mechanic's Assistant: Is there anything else the Marine Mechanic should be aware of?

1989 Yamaha 225 Excel

Show More
Show Less
Ask Your Own Boat Question
Answered in 1 minute by:
9/20/2017
Jason
Jason, Marine Mechanic
Category: Boat
Satisfied Customers: 17,389
Experience: Degree in Marine Technology. Gas and diesel marine mechanic.
Verified

H​ello my name is ***** ***** am I speaking with? I read what you wrote. What kind of history does this engine have? Have you ever personally seen it run correctly? Have you done any kind of troubleshooting on your own yet? Do you have a specific model number for the outboard?

Ask Your Own Boat Question
Customer reply replied 9 months ago
My name is***** is a 1989 Yamaha 225 Excell, ran great for a few days then starting having issues with bogging down. I found whoever changed the fuel pumps didn't have the gasket clocked correctly on one of the pumps so it wasn't working. I replaced both the pumps with new Sierra ones. Still had same issue, changed fuel/water separator and used an external fuel tank, same issue. Changed all the coil packs, still same issue.

Hi JR. When did it run great exactly? Are we talking 2 weeks ago or 4 years ago? Do you have a time frame? Do you also have an exact model number on the outboard? Have you checked things like compression, spark output, and fuel pressures?

Ask Your Own Boat Question
Customer reply replied 9 months ago
It las ran good a few weeks ago. Compression is about 120psi on all 6 cylinders, i have a spark tester from autozone that shows I'm getting spark on each cylinder, I'm not sure how I could test fuel pressure. I am looking for a picture of the model number but if I remember correctly the decal was mostly worn off.

What kind of spark tester do you have specifically? Do you have access to a timing light? (they are only 20 bucks)

Ask Your Own Boat Question
Customer reply replied 9 months ago
I have a old school timing light
Customer reply replied 9 months ago
It's just odd that it runs fine until I get up to about 3800 RPM and then dies. I give it a few minutes and it runs good, gets up on plane, then dies again. Carbs are clean, took the bowls off and they were spotless.

S​o it's getting to 3800 rpm and then stalling, is that correct?

Ask Your Own Boat Question

G​ot it. That is a sign of fuel starvation. I saw that you wrote that you ran in off of a different fuel tank. Did you hook that tank up directly to the engine, with new fuel line? Or did you disconnect the fuel line from the boats fuel tank, and hook up a portable tank to that existing fuel line?

Ask Your Own Boat Question
Customer reply replied 9 months ago
Disconnected the line from the tank to the input of the fuel bulb. Ran a new line from the fuel bulb to an external tank. Wonder if it is something as dumb as a bad check valve in the fuel bulb?

Did you try hooking up the fuel line directly to the engines fuel pumps, bypassing all other plumbing between the fuel pumps and the fuel tank? Also, have you checked the engine compression yet?

Ask Your Own Boat Question
Customer reply replied 9 months ago
No, I will try a new fuel bulb tomorrow and also connect the line straight to the engine if needed. Compression is between 118 and 120 on each cylinder. Did you see the model # in that picture?
Customer reply replied 9 months ago
I took a video of it bogging out tonight if that helps I can try to upload it.

Y​es I did get the model. You can also skip any kind of spark test because that would not fit your symptoms. If the engine is simply getting up to a certain RPM (in your case 3800) and stalling, what is happening is the fuel is not making it from the fuel tank to the carbs. Where you would to start is by hooking a fuel line up directly to the fuel pumps, and sticking the other end of that fuel line into a portable fuel tank. When the engine runs everything on the inlet side of the fuel pumps is under a vacuum. When there is any kind of leak, what happens is air will leak into the fuel stream, and you would not notice that leak as any kind of external fuel drip. In most cases what the issue is, is a leaking fuel line, a leaking fitting, a leaking fuel filter, ect. And those leaks are allowing air to enter the fuel stream. Since it's easier to suck air instead of sucking fuel up, What happens is the fuel pumps suck air in through those leaks instead of sucking fuel up from the tank, and the engine ultimately starves for fuel and stalls out from lack of fuel. Does that all make sense. I do want to make sure you are happy with my service before you go. If you had a further question on the issue by all means feel free to ask. If not, Just in case you do not understand the way the website works (and some folks do not). You do have to put forth a positive rating in order for it to credit me for helping you. When ratings are not done, the website simply keeps your deposit and they will not credit me. The ratings box is located at the top of the screen. To rate, you must select the star you wish and also confirm it. Please let me know if you run into any problems or errors when trying to do it. If you do have a problem, or if you can not see the ratings box which is at the top of the screen. Please reply back "I rate Jason's service _______" and fill in the blank.

Please note that our question sessions never close out, so if you need to come back later down the road with follow up questions to the issue, you can do so at any time, even after putting through a rating.

Thanks in advance, and good luck
Jason

Jason
Jason, Marine Mechanic
Category: Boat
Satisfied Customers: 17,389
Experience: Degree in Marine Technology. Gas and diesel marine mechanic.
Verified
Jason and 87 other Boat Specialists are ready to help you
Ask your own question now
Customer reply replied 9 months ago
I will do what you suggested Friday as I have plans tomorrow night. I will let you know the results. I uploaded the video to youtube, here's the link https://youtu.be/Igo_1Ahb-ZQthx
Customer reply replied 8 months ago
Tried the gas tank with line directly to fuel pump, ran the same. Tested resistance of stator. between the blue and black/red wires it should have between 65 and 130 ohms. Mine tested 24 ohms, thinking it's the issue. Thoughts?

Hi JR, good morning. I got the video. Did you ever hook up a fuel pressure gauge between the pump and carbs to see if it had fuel pressure? Where are you getting the specs for the stator, do you have the factory service manual on the engine?

Ask Your Own Boat Question

When you got that stator reading. Did you disconnect those blue and black/red wires from the terminal strip and stick your volt meter on the wires themselves. Or did you just touch the meter leads to the terminal strip?

Ask Your Own Boat Question
Customer reply replied 8 months ago
Both, read the same.

How does brown to red read?

Ask Your Own Boat Question
Customer reply replied 8 months ago
1024 ohms, all other combinations were around 360 ohms.

The stator is what they call a 2 speed stator. It has a high and low speed. The low speed side is the brown to red, the high speed side is those other wise. Typically when the high speed side isnt' working (and yours does read out of spec) the engine will run up to roughly 3000 to 3500 rpms just fine, but it won't go any faster than that. A failed high speed side of the stator also will not cause stalling. It's definitely possible there is more than 1 thing wrong wit the engine, but the stator wouldn't cause the stalling like that. You definitely want to check the fuel pressure to make sure the fuel pumps are good first, before touching that stator.

Ask Your Own Boat Question
Customer reply replied 8 months ago
Okay, it has always been a struggle to get it over 3200 rpm. I'll check the fuel pressure between the pumps and the carbs also. I also have access to a used stator that tests within spec for $50. I already pulled the flywheel and stator off yesterday so I will test the fuel pressure with the replacement stator installed.

Sounds good. Let me know how you make out.

Ask Your Own Boat Question
Customer reply replied 8 months ago
I will. Thx. By the way, both the fuel pumps are new. I took the previous ones off to inspect the back side for leaking gas and found one had no gasket and the other gasket was clocked wrong. I thought for sure the new pumps and gaskets I installed were going to fix the issue but didn't. Look at the picture attached.

There is more than 1 thing that can cause low fuel pressure other than the pumps. But first we have to see what the pressure actually is. And if that pressure is holding when the engine bogs, or see if that pressure drops about 10 seconds before the engine starts to bog.

Ask Your Own Boat Question
Customer reply replied 8 months ago
Gotcha

Keep me posted.

Ask Your Own Boat Question
Was this answer helpful?

How JustAnswer works

step-image
Describe your issueThe assistant will guide you
step-image
Chat 1:1 with a marine mechanicLicensed Experts are available 24/7
step-image
100% satisfaction guaranteeGet all the answers you need
Ask Jason Your Own Question
Jason
Jason
Jason, Marine Mechanic
Category: Boat
Satisfied Customers: 17,389
17,389 Satisfied Customers
Experience: Degree in Marine Technology. Gas and diesel marine mechanic.

Jason 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

17,389 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
I have a question. Sorry about that I have a 92 40 hp motor
sorry about that I have a 92 40 hp Johnson motor I just had the carbs rebuilt it runs good and everything but when in neutral it will die and wont start up until I spray starter fluid can u help me diagnose the problem … read more
Tan
Tan
MerCruiser Certified Technician
Certified Marine Technician
11,003 satisfied customers
I have a 93 mercury force 120 hp it will tach only 3000 rpm
I have a 93 mercury force 120 hp it will tach only 3000 rpm then if you hit a wake it will suddenly run fine . Starts good idles fine , compression check is good on all cyl replaced stator, and igniti… read more
Clamp-onTech
Clamp-onTech
405 satisfied customers
I changing a cylinder head on my 2000 85hp Yamaha 2 stroke
Hi I changing a cylinder head on my 2000 85hp Yamaha 2 stroke tomorrow and im wondering if you could tell me the torque settings for the cylinder head bolts and the cover bolts please. cheers Paul … read more
Jason
Jason
Marine Mechanic
17,389 satisfied customers
Mercruiser 3.0 got wet(forgot to put plug in.)water just
Mercruiser 3.0 got wet(forgot to put plug in.)water just over starter. Turning over but won't start.??… read more
Jason
Jason
Marine Mechanic
17,389 satisfied customers
Turn the switch to start engine and nothing. All seems to be
Turn the switch to start engine and nothing. All seems to be dead. All worked perfectly two eels ago. … read more
Jason
Jason
Marine Mechanic
17,389 satisfied customers
Just purchased a new boat and it has a GP-1670F/GP-1870F GPS
Just purchased a new boat and it has a GP-1670F/GP-1870F GPS plotter (FRN-520BLD) . … read more
Clamp-onTech
Clamp-onTech
405 satisfied customers
I have a terrova 80 serial number K323MK00866 When the motor
I have a terrova 80 serial number K323MK00866 When the motor is up in the bracket, not being used it will no longer lock into position falls down I believe that the plastic stow deploy lever is broken… read more
Clamp-onTech
Clamp-onTech
405 satisfied customers
Have a 2012 Mercury Optimax 125 two stroke with an oil tank
have a 2012 Mercury Optimax 125 two stroke with an oil tank reservoir for mixing the fuel. There is an alarm that will come on if the oil is low and the boat will be restricted to only 1k rpms . This … read more
Clamp-onTech
Clamp-onTech
405 satisfied customers
I have a 1989 OMC Cobra 4.3 L I/O. The boat ran fine all day
I have a 1989 OMC Cobra 4.3 L I/O. The boat ran fine all day on Saturday and at the end of the day it got stuck in reverse. The control shifter moved mor smoothly forward and reverse but the boat woul… read more
Jason
Jason
Marine Mechanic
17,389 satisfied customers
I have a lowrance HDS 7 gen 3 with 3d scan. For some odd
Hi, I have a lowrance HDS 7 gen 3 with 3d scan. For some odd reason since I bought and tried it out one side is only showing half, and the other whole. The setting vs only show flip left/right. How ca… read more
Clamp-onTech
Clamp-onTech
405 satisfied customers
5.0 MERCRUISER 2005 RISER AND ELBOW, CAN THEY BE CLEANED OR
5.0 MERCRUISER 2005 RISER AND ELBOW, CAN THEY BE CLEANED OR DO I NEED TO REPLACE BOTH , MOTOR STILL OVERHEATING, I HAVE REPLACED IMPELLER GETTING 40 PSI , WATER PUMP ON MOTOR AND THERMOSTAT, STILL OVE… read more
Jason
Jason
Marine Mechanic
17,389 satisfied customers
Replacing the trim/tilt switch at the helm. 3 terminals on
Replacing the trim/tilt switch at the helm. 3 terminals on the switch. which wires go where? … read more
Jason
Jason
Marine Mechanic
17,389 satisfied customers
I have a Volvo Penta 8.1L with the DPS-A lower unit. I was
I have a Volvo Penta 8.1L with the DPS-A lower unit. I was having trouble with the steering (it was harder to turn one direction than the other, and was making a moaning noise when turned all the way … read more
Jason
Jason
Marine Mechanic
17,389 satisfied customers
Merc 350 ec 2011 engine is what the manual says. Severe
guages look fine. Temp below 180 oil pressure above 40. Fluid levels look ok. Without a code reader where do I start?… read more
Jason
Jason
Marine Mechanic
17,389 satisfied customers
I have a 1993 Four Winns 245 Vista with a OMC Ford 351W with
I have a 1993 Four Winns 245 Vista with a OMC Ford 351W with a bad ignition module. I'm thinking of converting to a DUI distributor M35820BL. Will I need to rewire all gauges and accessories (that app… read more
Jason
Jason
Marine Mechanic
17,389 satisfied customers
1980 Bayliner 21ft Liberty Cabin Cruiser Inboard 470 dies
1980 Bayliner 21ft Liberty Cabin Cruiser Inboard 470 dies when trying to run wide open? … read more
Jason
Jason
Marine Mechanic
17,389 satisfied customers
Can I use NGK BP8H-N-10 spark plugs on an engine that
Can I use NGK BP8H-N-10 spark plugs on an engine that previously had NGK BP8HS-10 ‘s? It's a 9.9 Mercury serial #0A928616… read more
Jason
Jason
Marine Mechanic
17,389 satisfied customers
I turn the key on and I have a beeper going off before I
I turn the key on and I have a beeper going off before I start the motor. Changed fuel pump last week it's a 1992 40 horse classic Mercury … read more
Jason
Jason
Marine Mechanic
17,389 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