Small Engine

Small Engine Troubleshooting Problems? Ask a Mechanic Now.

Ask an Expert,
Get an Answer ASAP!

I have a lawn tractor with a Briggs Intek engine that has a…

Customer Question
Second opinion] I have...

Second opinion] I have a lawn tractor with a Briggs Intek engine that has a surging problem, It is fairly new with about 25 hours. I have done all the recommended checks including: fresh fuel, new fuel filter, cleaned the fuel tank, verified that the tank vent and feed line are clear. The carburetor has been disassembled and cleaned including all the small orifices with no blockages found. On the air side all the joints between the carb and engine have been checked by spraying carb cleaner with no effect. Could this be a governor problem. There are two things that will end the surge. 1) if you block the air intake almost completely it the engine will smooth out and run just fine. 2) If you hold the throttle linkage steady it also smooths out at high speed but as you back off on the throttle the engine will stall. Does this tell you anything?

Mechanic's Assistant: Can you guesstimate how old the engine is? And has it done anything like this in the past?

Yes, the tractor was purchased in May 2016 and operated just fine until this fall when the surging started. It is almost gone if you run it at full throttle with a load - blades turning and moving. Also having the choke partially on seems to help. Total hours as I said are less than 25

Mechanic's Assistant: Do you plan on doing the work yourself?

We (my daughter and I) have done all of the stuff so far ourselves but we are out of ideas. If possible we will do it ourselves. The engine is still under Warranty but all repair shops tell be this is a fuel or air issue and would not be covered. A bad governor would be covered but I don't know how to check this

Submitted: 8 months ago.Category: Small Engine
Show More
Show Less
Ask Your Own Small Engine Question
Answered in 1 hour by:
11/14/2017
Technician: Curtis B., Technician replied 8 months ago
Curtis B.
Curtis B., Technician
Category: Small Engine
Satisfied Customers: 15,342
Experience: have worked on and around most engine models for 35 yrs./Polaris ATV expert
Verified

Welcome to JUST ANSWER small engines, let me try to help you !! I don't know it all, but maybe together we can get you a satisfactory answer!

Ask Your Own Small Engine Question
Technician: Curtis B., Technician replied 8 months ago

What is the engine make and model? Indication is the engine is not getting enough fuel. Do you have a full flow of fuel to the carburetor from the tank and filter?

Ask Your Own Small Engine Question
Customer reply replied 8 months ago
Briggs Model 440000. I believe fuel is flowing. When I look at the filter it is about 2/3 to 3/4 full with the engine running at full throttle
Customer reply replied 8 months ago
I do not want to pay for the call
Customer reply replied 8 months ago
Curtis are you still there?
Customer reply replied 8 months ago
I give up. Apparently second opinions are very low priority there. Your last response was at 2:07 my time coming up on two hours ago. unacceptable.
Technician: Curtis B., Technician replied 8 months ago

?? OK>

Ask Your Own Small Engine Question
Customer reply replied 8 months ago
No I am not going to pay another $24 to talk to you. Just continue the chat. If its more than five minutes from now forget it. I'm going to complain about this company's bate and switch tactics. Two hours waiting for a response on line is rediculous. You asked for the model number and I gave it to you so let's go from there
Technician: Curtis B., Technician replied 8 months ago

With this being a twin engine, I would run a cylinder test. Loosen the spark plug wires, and with engine idling, remove one wire at time, to see if both cyliders are firing.

Ask Your Own Small Engine Question
Technician: Curtis B., Technician replied 8 months ago

Did you see my last post?

Ask Your Own Small Engine Question
Customer reply replied 8 months ago
Did you read my initial description of the problem - first post in this string? I know both cylinders are firing because when airflow is partially blocked off the engine smooths out.
Technician: Curtis B., Technician replied 8 months ago

That is not a valid test. These engines can run smooth on just one cylinder.

Ask Your Own Small Engine Question
Was this answer helpful?

How JustAnswer works

step-image
Describe your issueThe assistant will guide you
step-image
Chat 1:1 with a technicianLicensed Experts are available 24/7
step-image
100% satisfaction guaranteeGet all the answers you need
Ask Curtis B. Your Own Question
Curtis B.
Curtis B.
Curtis B., Technician
Category: Small Engine
Satisfied Customers: 15,342
15,342 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

15,342 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

2,902 satisfied customers

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

Wayne

Wayne

Engine Rebuilder

2,006 satisfied customers

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

RUSS

RUSS

SERVICE TECHNICIAN

1,723 satisfied customers

28 YEAR SERVICE TECHNICIAN

< Previous | Next >

Related Small Engine Questions
I have the &S 18.5 Intek engine on my Deere lawn tractor.
I have the B&S 18.5 Intek engine on my John Deere lawn tractor. The engine continually throttles up and down and I haven't been able to find the problem, I checked all the fuel lines, replaced the car… read more
Donald
Donald
Owner / Technician
High School
2,511 satisfied customers
I have a lawn tractor with a Briggs Intek engine that has a
I have a lawn tractor with a Briggs Intek engine that has a surging problem, It is fairly new with about 25 hours. I have done all the recommended checks including: fresh fuel, new fuel filter, cleane… read more
Wayne
Wayne
Engine Rebuilder
Vocational, Technical or Trade Scho
2,006 satisfied customers
How do I determine and adjust the fuel air mixture on a
How do I determine and adjust the fuel air mixture on a Nikki carb? I have one on a 10.5 hp Briggs. I have cleaned it and replaced the gaskets. The mower will not stay running, it will run for about 5… read more
Curtis B.
Curtis B.
Technician
Associate Degree
15,342 satisfied customers
I have a briggs Model 123KO2-0193 that i installed a new
I have a briggs Model 123KO2-0193 that i installed a new carb and intake tube. When it starts it surges. I cannot see adjustment on carb? … read more
JON
JON
Master Service Tech
MASTER SERVICE TECHNICIAN
1,855 satisfied customers
42" mower lawn tractor 16.0 hp kohler engine. i was mowing
42" mower lawn tractor 16.0 hp kohler engine. i was mowing and engine started running to fast.. when i tried to slow it down.. i moved the throttle/choke control to slow.. the engine ran faster..?? … read more
Curtis B.
Curtis B.
Technician
Associate Degree
15,342 satisfied customers
Have a Kohler CV25 that was surging at all speeds, even
Have a Kohler CV25 that was surging at all speeds, even idle. Rebuilt the carb, cleaned the fuel shutoff solenoid, replaced all lines. Now it get to half throttle before it starts to surge. What else … read more
Curtis B.
Curtis B.
Technician
Associate Degree
15,342 satisfied customers
Lawn mower engine surges about 1 minute after starting and
lawn mower engine surges about 1 minute after starting and won't stop … read more
Curtis B.
Curtis B.
Technician
Associate Degree
15,342 satisfied customers
I have a 2000 Deere 325 Lawn Tractor that is surging at gh
I have a 2000 John Deere 325 Lawn Tractor that is surging at high throttle without a load. Once the load, driving or lawn mower, the surging stops. Any thoughts on the problem?… read more
JohnF2015
JohnF2015
High School Diploma
1,241 satisfied customers
I have a 12.5 hp Briggs & Stratton on a Snapper LT that surges
I have a 12.5 hp Briggs & Stratton on a Snapper LT that surges at all speeds. I have rebuilt the carb., replaced fuel lines, air and fuel filters. If I hold the throttle (after the gov. linkage) the e… read more
Briggs-Fan
Briggs-Fan
1,278 satisfied customers
My lawn tractor has a 17hp B & G Intek engine. It has been
My lawn tractor has a 17hp B & G Intek engine. It has been idle for 2 yrs. I have replaced the battery, drained and re-filled the fuel tank,checked the hose for fuel flow to carb., cleaned air filter,… read more
Curtis B.
Curtis B.
Technician
Associate Degree
15,342 satisfied customers
Sears craftsman tractor Mod# XXXXX type#0413E1 Code #050207YG 24hp
Sears craftsman tractor Mod# XXXXX type#0413E1 Code #050207YG 24hp intek The problem i have began all of a sudden. my riding lawn tractor runs fine when you first start it. it will run fine for hours,… read more
Curtis B.
Curtis B.
Technician
Associate Degree
15,342 satisfied customers
I have a Sears lawn tractor with an INTEK 20 HP B&S engine
I have a Sears lawn tractor with an INTEK 20 HP B&S engine . The engine began running rough with black smoke and surging. I cleaned the filter, ck'd for water in the fuel. I cleaned the Carb and insta… read more
Jon K.
Jon K.
Small Engine Diagnostic Expert
Some College, military training,
2,995 satisfied customers
My four month old model series 410 lawn mower with a briggs/stratton
My four month old model series 410 lawn mower with a briggs/stratton motor all of a sudden started running very roughly. It seems like it is way too rich and the plug gets fouled. As a result I am als… read more
Dr. Carburetor
Dr. Carburetor
Bachelor's Degree
13 satisfied customers
I have a B&S Intek 21 V-Twin engine in a Craftsman lawn tractor.
I have a B&S Intek 21 V-Twin engine in a Craftsman lawn tractor. How do I adjust the governor? Carb was gummed and throttle valve stuck; removed & cleaned, and it is working well now. After removing, … read more
J.R.
J.R.
Vocational, Technical or Trade Scho
7,173 satisfied customers
I have a craftsman lawn tractor with a governor that keeps
I have a craftsman lawn tractor with a governor that keeps surging or hunting for a level running . I have tuned it up by changing the plug and oil . I have even changed the air filter and fuel filter… read more
J.R.
J.R.
Vocational, Technical or Trade Scho
7,173 satisfied customers
I have an MTD lawn tractor with a B&S 42A700 18 hp engine.
I have an MTD lawn tractor with a B&S 42A700 18 hp engine. My problem started with water in the gas and a plugged fuel line. I have taken care of this by removing and cleaning everything with an air h… read more
ranwell1
ranwell1
CEO
High School or GED
5,039 satisfied customers
I have an LX188 lawn tractor. The engine rpm goes from high
I have an LX188 lawn tractor. The engine rpm goes from high to low and back at all throttle levels. At lower throttle levels the engine dies. After partial dissasembly of the front cover of the carb. … read more
J.R.
J.R.
Vocational, Technical or Trade Scho
7,173 satisfied customers
I have a John Deere 190C Lawn tractor. It is beginning its
I have a John Deere 190C Lawn tractor. It is beginning it's third season. It was running perfectly when I started to mow. Suddenly it started to run rough and without full power. I noticed it was almo… read more
J.R.
J.R.
Vocational, Technical or Trade Scho
7,173 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