Small Engine

Small Engine Troubleshooting Problems? Ask a Mechanic Now.

Ask an Expert,
Get an Answer ASAP!

Small Engine

I have a k241 Kohler 10 hp engine that runs fine at a idle

Customer Question
but will run for just...
I have a k241 Kohler 10 hp engine that runs fine at a idle but will run for just a little while at full idle just like it runs out of fuel new carb new points new coil new condenser new wire from coil to plug new spark plug I am buffaloed I have been a mechanic for over 40 years and never had something like this stump me
Submitted: 2 years ago.Category: Small Engine
Show More
Show Less
Ask Your Own Small Engine Question
Answered in 21 minutes by:
9/23/2015
Technician: JohnF2015, Technician replied 2 years ago
JohnF2015
JohnF2015, Technician
Category: Small Engine
Satisfied Customers: 1,179
Experience: Owner/Service Technician at S & J Small Engines
Verified

Hi, my name is***** will be assisting you.

Does this engine have a fuel pump on it? Have you check fuel level in the bowl when it dies to see if there is even any fuel in the bowl?

Ask Your Own Small Engine Question
Customer reply replied 2 years ago
no fuel pump it has fuel in carb when it dies I have checked this several times and their is always fuel in the bowl
Technician: JohnF2015, Technician replied 2 years ago

Approximately how long will it run at full throttle before it dies? Have you checked the fuel tank vent to make sure that you are not creating a vacuum inside the fuel tank that would cause fuel to not flow fast enough to keep the engine running?

Ask Your Own Small Engine Question
Customer reply replied 2 years ago
once it starts dying its less than a minute it starts right back up and runs at idle rev it up and in just a few seconds it dies again I have checked cap and tank both ok nothing in tank and vent is not plugged causing a vaccum
Technician: JohnF2015, Technician replied 2 years ago

It just sounds like you have a fuel restriction but based on everything that you say that you have already done I don't see how that could be.

Can you put a spark tester in line between the plug wire and spark plug and see what the spark is doing while the engine is running? It is possible that the spark is not advancing properly at higher throttle, maybe a weak ignition coil.

Ask Your Own Small Engine Question
Customer reply replied 2 years ago
I have checked spark and it is good I thought the same thing and replaced the coil still have the same problem
Technician: JohnF2015, Technician replied 2 years ago

To your knowledge has the engine been taken apart recently and put back together, a chance that the internal timing marks were not lined back up correctly when installing or putting back together?

Ask Your Own Small Engine Question
Customer reply replied 2 years ago
the engine has never been apart
Customer reply replied 2 years ago
even if that was the case why would it start and run to begin with
Technician: JohnF2015, Technician replied 2 years ago

If it were one tooth off on internal timing it would still start but at higher speeds the valves would be off time just enough that they would not close fast enough. At slow speeds or idle it isn't as much of a problem.

I am going to opt out of your question which will allow for one of the other experts here to weigh in on your question and maybe provided some other ideas for you.

Ask Your Own Small Engine Question
Technician: Curtis B., Technician replied 2 years ago
Curtis B.
Curtis B., Technician
Category: Small Engine
Satisfied Customers: 29,451
Experience: have worked on and around most engine models for 35 yrs./Polaris ATV expert
Verified

Have you tried to run it out of a raised fuel container? Sounds like the fuel is not keeping up with the needed supply.

Ask Your Own Small Engine Question
Customer reply replied 2 years ago
Fuel tank is mounted above engine and has good flow of fuel coming out of tank
Technician: Curtis B., Technician replied 2 years ago

Exhaust open? Engine has to loose spark or fuel. with it starting right back up, would seem to be fuel! That means the restriction is in the fuel supply or the needle valve and float.

Ask Your Own Small Engine Question
Customer reply replied 2 years ago
New carb have rechecked float setting and needle valve still does the same thing thanks for all your suggestions but I still have a problem sorry to have wasted your time and my money
Customer reply replied 2 years ago
if exhaust was open I would think compression would be down and its not
Technician: Curtis B., Technician replied 2 years ago

exhaust will not affect compression!

Ask Your Own Small Engine Question
Technician: Curtis B., Technician replied 2 years ago

If anything, it will raise the compression!

Ask Your Own Small Engine Question
Technician: Curtis B., Technician replied 2 years ago

If exhaust does not get out ,gas can't get in.

Ask Your Own Small Engine Question
Customer reply replied 2 years ago
if a exhaust vale is burnt or open it will very much effect your compression on any engine I ever worked on and I have been mechanic for over 40 years on lawnmowers chainsaw cars trucks and heavy equipment
Technician: Curtis B., Technician replied 2 years ago

That is not the point, the exhaust port would be plugged with carbon, not a bad valve!

Ask Your Own Small Engine Question
Technician: Curtis B., Technician replied 2 years ago

Or the exhaust pipe.

Ask Your Own Small Engine Question
Customer reply replied 2 years ago
exhaust port and pipe are both open if they were plugged my problem would have all ready been solved because I checked that from the start
Technician: Curtis B., Technician replied 2 years ago

OK, I cant add anything, I will opt out. sorry.

Ask Your Own Small Engine Question
Customer reply replied 2 years ago
I will try to figure this out I have not learned any thing more than what I all ready tried and done thanks for trying to help though
Ask Curtis B. Your Own Question
Curtis B.
Curtis B.
Curtis B., Technician
Category: Small Engine
Satisfied Customers: 29,451
29,451 Satisfied Customers
Experience: have worked on and around most engine models for 35 yrs./Polaris ATV expert

Curtis B. 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:

You did one super job of explaining to me everything there is to know about this fridge. I'm looking forward to asking you questions in the future.

JimmyBagley, IA

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

< Previous | Next >

Meet the Experts:

Curtis B.

Curtis B.

Technician

29,451 satisfied customers

have worked on and around most engine models for 35 yrs./Polaris ATV expert

Rick

Rick

Factory Authorized Trainer

4,218 satisfied customers

Outdoor Power Equipment technical trainer since 1990, covering eight states.

Jon K.

Jon K.

Small Engine Diagnostic Expert

2,995 satisfied customers

Gold certified Stihl tech, Service Manager for a rental/repair shop.Certified in most small engines

James W

James W

Small Engine Troubleshooting Expert

2,986 satisfied customers

7 years as Mechanic & Parts Manager for Brother who has Owned Lawn & Garden Repair shop for 35 years

Vince O.

Vince O.

Small Engine Technician

2,858 satisfied customers

Over 30 years experience repairing lawn and garden equipment. Chainsaws, mowers,blowers and trimmers

RUSS

RUSS

SERVICE TECHNICIAN

1,723 satisfied customers

28 YEAR SERVICE TECHNICIAN

Wayne

Wayne

Engine Rebuilder

1,607 satisfied customers

many years on egine rebuilding, lawn mower,roto tiller,Truck,and small engines

< Previous | Next >

Related Small Engine Questions
I have saw that when the engine starts, the starter pulley
I have saw that when the engine starts, the starter pulley won't recoil and I have to fix it. When it doesn't start it recoils fine.… read more
Donald
Donald
Owner / Technician
High School
2,229 satisfied customers
My brother bought a power box. He just passed away. I have
my brother bought a power box . He just passed away. I have the box with the charger . the box will not charge and no lights come on showing its charging 4what do i do to fix it. … read more
Curtis B.
Curtis B.
Technician
29,451 satisfied customers
I own anLS5T-h electric log splitter and the handle for the
I own anLS5T-h electric log splitter and the handle for the hydraulics stopped working but when I use the button for the motor it functions as if the hydraulic handle is engaged. The ram returns to th… read more
Curtis B.
Curtis B.
Technician
29,451 satisfied customers
My generater blinks 3 times,,, then 5 times. Its a yr old
my generater blinks 3 times,,, then 5 times JA: What's the make and model of the generator? And can you guesstimate how old it is? Customer: its a yr old ,,, oanon,4000 JA: Do you plan on doing the wo… read more
Hank F.
Hank F.
Service Technician
High School or GED
5,363 satisfied customers
Troybilt squal 210 won't start. Done that and changed spark
Troybilt squal 210 won't start JA: Do you have fuel in the tank? If so, is the shut-off valve open and the fuel clean? Customer: Done that and changed spark plug JA: Do you plan on doing the work your… read more
JohnF2015
JohnF2015
Technician
1,179 satisfied customers
I have a McCulloch FG5700 AK generator that will not stay
I have a McCulloch FG5700 AK generator that will not stay running. It will start if I spray starter fluid in the filter but will to stay running. I'm assuming it's a dirty carb or clogged gas line. An… read more
Curtis B.
Curtis B.
Technician
29,451 satisfied customers
What type of transmission fluid and amount used for Stanley
what type of transmission fluid and amount used for Stanley Mower year 2002 with Peerless***** … read more
JON
JON
Master Service Tech
MASTER SERVICE TECHNICIAN
1,508 satisfied customers
The black wire of my old snowblower has become disconnected,
the black wire of my old snowblower has become disconnected, and I have no idea where to reconnect it. It was functioning well until the last storm. Seemed sluggish. I took off the shield to get at th… read more
Wayne
Wayne
Engine Rebuilder
Vocational, Technical or Trade Scho
1,607 satisfied customers
What do I have to do to stop my shoot from going where it
What do I have to do to stop my shoot from going where it wants to, the shoot itself, not the top of it? it is a 2 stage 24 inch blower. … read more
Wayne
Wayne
Engine Rebuilder
Vocational, Technical or Trade Scho
1,607 satisfied customers
We have an onan 4000 light in our 2005 itasca motorhome, ot
We have an onan 4000 light in our 2005 itasca motorhome, ot runs great unless we are in a heat situation and it will not run, heat as in 90 or better … read more
Hank F.
Hank F.
Service Technician
High School or GED
5,363 satisfied customers
Model thickness planer drive belt change. First time. Just
Model###-##-#### thickness planer drive belt change … read more
Curtis B.
Curtis B.
Technician
29,451 satisfied customers
Ariens 920001-ST624E Sno-Thro won't start. And yes. So far.
I'm an engineer, but...I've reread all the start procedures...its worked well for about 8 years....not a ton of use....I always change the oil...I've checked the spark plug for fouling as well as the gap. Oh and I'm careful about fouling the correct starting steps.… read more
JON
JON
Master Service Tech
MASTER SERVICE TECHNICIAN
1,508 satisfied customers
I have a craftsman 7.25 mower. do ineed to use a oil gas
I have a craftsman 7.25 mower. do ineed to use a oil gas mixture? … read more
Appliance Guru
Appliance Guru
17,062 satisfied customers
I have a mtd 145/38 I can not loc ate the fuse. Today.
today. Checked solenoid. It is ok but no power to key. … read more
Curtis B.
Curtis B.
Technician
29,451 satisfied customers
My Chamberlain door opener is not cycling properly. What is
My Chamberlain door opener is not cycling properly. What is causing that and how can fix it … read more
Eddie
Eddie
Home Improvement Contractor and Repairs
High School or GED
1,045 satisfied customers
3 stage snow thrower, auger not turning, heavy water snow
3 stage snow thrower, auger not turning, heavy water snow when last used. Unhooked auger belt from drive pulley ,,, augers will not turn,,, … read more
Wayne
Wayne
Engine Rebuilder
Vocational, Technical or Trade Scho
1,607 satisfied customers
I have changed the starter solenoid but mower still won't
I have changed the starter solenoid but mower still won't start … read more
Curtis B.
Curtis B.
Technician
29,451 satisfied customers
I can't start my Ariens Deluxe 28 snow blower. My model has
Yes, My model has the choke and idle down controls in the same location. … read more
Wayne
Wayne
Engine Rebuilder
Vocational, Technical or Trade Scho
1,607 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