Small Engine

Small Engine Troubleshooting Problems? Ask a Mechanic Now.

Ask an Expert,
Get an Answer ASAP!

Subaru robin engine. fires but does not stay running.

Customer Question
Subaru robin engine....

Subaru robin engine. fires but does not stay running. Removed gas tank, check filter, blew fuel line... nothing. Replaced the carburetor and it does the same thing. Fires and then dies . Ran with gas cover off.. same issue. Disconnected the governor and tried to run and again... shuts right off.

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

What is the best way to determine if it is a fuel issue ?

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

I used it twice.... and it worked fine. following year I couldn't get it started. Ridgid pressure washer. I pulled the pump on the washer and tried thinking maybe the pump was sntallingthe ending... nope It is 8 years old.... run like 5 hours max.

Mechanic's Assistant: Anything else we should know to help you best?

The interesting thing is with the new carburetor, it is doing the same exact thing as old one.

Submitted: 2 months ago.Category: Small Engine
Show More
Show Less
Ask Your Own Small Engine Question
Customer reply replied 2 months ago
I have ordered a spark tester and will get that tomorrow. The engine fires.... I disconnected the oil pressure switch too... to make sure that was not the issue. And there is plenty of oil in the engine.
Customer reply replied 2 months ago
Engine fires and dies within 2 or 3 seconds... like it is starving for fuel. How can I determine it is getting enough gas... again new carb.
Customer reply replied 2 months ago
The old carb and the new look exactly alike....
Customer reply replied 2 months ago
I bought the new carb since the thing had been sitting for 6 years with gas in it.... wasn't clogged but figured for 21 bucks, a new carb would solve any issues..... but I had been only a year after I used it and it would not start... Now finally have time and ambition to fix this.
Answered in 3 hours by:
5/29/2018
Technician: JON, Small Engine Technician replied 2 months ago
JON
JON, Small Engine Technician
Category: Small Engine
Satisfied Customers: 1,877
Experience: Certified Small Engine Technician
Verified

Hi, my name is***** me review the issue, and I will be more than happy to help resolve it as quickly as possible. I will return in under 5 minutes

Ask Your Own Small Engine Question
Technician: JON, Small Engine Technician replied 2 months ago

how long has the new carb been on the machine? Sounds like a clogged fuel jet

Ask Your Own Small Engine Question
Customer reply replied 2 months ago
one day... the carb is brand new.
Technician: JON, Small Engine Technician replied 2 months ago

will it start right back up briefly every time ?

Ask Your Own Small Engine Question
Customer reply replied 2 months ago
When you pull it fires and immediately shuts down. This is with the choke on full and throttle at 50%. (of note) It will not start or fire at full throttle. When I pull it again after a second it will fire again. Within 10 seconds of pulling it fires up again but the longer I wait the more robust firing and shutdown.....
Technician: JON, Small Engine Technician replied 2 months ago

Sounds like an ignition coil problem.spray a little carb cleaner or starting fluid into the cylinder and see if it will run any longer

Ask Your Own Small Engine Question
Customer reply replied 2 months ago
I can say that on a hand full of occasions at a right adjustment the engine stays running for about 30 seconds. Then shuts off. Any load and it dies. touching the throttling lower or higher it dies.
Customer reply replied 2 months ago
i removed the governor and that was no help.
Technician: Curtis B., Technician replied 2 months ago
Curtis B.
Curtis B., Technician
Category: Small Engine
Satisfied Customers: 31,895
Experience: have worked on and around most engine models for 35 yrs./Polaris ATV expert
Verified

Have you drained the new carburetor? On pressure washer, it seems they always get water in the fuel and it gets in the float bowl.

Ask Your Own Small Engine Question
Customer reply replied 2 months ago
No water... fresh gas. I haven't had a chance to run the unit with the new carb except it firing and shutting down.
Customer reply replied 2 months ago
I mowed the lawn yesterday with the same gas.. no issues with fuel.
Technician: Curtis B., Technician replied 2 months ago

Does engine have an oil pressure switch or oil level switch?

Ask Your Own Small Engine Question
Customer reply replied 2 months ago
I disconnected it to see if it would work.. no difference.. When I click the switch which is wired to the oil pressure switch, the engine will not fire. So disconnect oil switch, it will fire, disconnect on off switch no fire.
Technician: Curtis B., Technician replied 2 months ago

Is fuel flow from tank to carb good? Is flow thru the needle valve good? Did you replace the fuel line to the carburetor?

Ask Your Own Small Engine Question
Customer reply replied 2 months ago
I fuel line clear... tank and filter on tank clear... I took the gas tank off and pulled the fuel line out. There is a 2 inch screen inside the tank as a filter that its white/yellow and a very thin screen. Gas passes through the no problem. How many drips per second should I get from the carb bowl to say adequate flow?
Technician: Curtis B., Technician replied 2 months ago

I would want a steady flow from bowl.

Ask Your Own Small Engine Question
Customer reply replied 2 months ago
flow or drip... from the bowl?
Customer reply replied 2 months ago
there is speed screw on the side of the bowl...if I open that up... should it be drip drip or stream after I empty the bowl.
Technician: Curtis B., Technician replied 2 months ago

It should be a stream.

Ask Your Own Small Engine Question
Customer reply replied 2 months ago
will check it tomorrow.
Technician: Curtis B., Technician replied 2 months ago

OK>

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: 31,895
31,895 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

31,895 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

2,927 satisfied customers

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

Wayne

Wayne

Engine Rebuilder

2,041 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
My Ryobi pressure washer will start and run, squeeze the
My Ryobi pressure washer will start and run, squeeze the trigger and it will run about 5 seconds then dies. When the customer brought it in, we could not get any water through it at all, so I replaced… read more
Curtis B.
Curtis B.
Technician
Associate Degree
31,895 satisfied customers
I have the same issue with my generac 5500 generator (spray
I have the same issue with my generac 5500 generator (spray carb fluid & engine runs for a couple seconds, then stops). I replaced the carb, spark plug, start switch and still the same issue. … read more
Curtis B.
Curtis B.
Technician
Associate Degree
31,895 satisfied customers
La Lawn boy four stroke starts then dies new carb same thing
La Lawn boy four stroke starts then dies new carb same thing replace gas line same exchange with old carb same new gas same… read more
JON
JON
Small Engine Technician
1,877 satisfied customers
I have a 19 hp &S engine that I cannot get to pump gas from
I have a 19 hp B&S engine that I cannot get to pump gas from the fuel tank to the engine. I just recently have replaced the carburetor, thinking I had a fuel pump issue, without any positive results. … read more
Briggs-Fan
Briggs-Fan
1,280 satisfied customers
I need a Kawasaki small engine tech. I have a FD750d-ASO4
I for sure need a Kawasaki small engine tech. I have a FD750d-ASO4 that is filling the carb with gas and the only way to get it to run is crimp the fuel line on and off. I have replaced the filter, fu… read more
JohnF2015
JohnF2015
High School Diploma
1,261 satisfied customers
I have a lth1538 Husqvarna it wont start it turns over and
I have a lth1538 Husqvarna it wont start it turns over and will run for 15 seconds then dies if I pour gas in carb could it the electric thing on carb bowl new fuel filter also be also my lites don't … read more
Briggs-Fan
Briggs-Fan
1,280 satisfied customers
Honda eu1000i generator will fire up second and die.
Honda eu1000i generator will fire up for a second and die. I have torn down the carburetor and cleaned it, changed the spark plug, changed the oil and disconnected the "low oil sensor". Any suggestion… read more
Briggs-Fan
Briggs-Fan
1,280 satisfied customers
I have a Troy Bilt TB25cs string trimmer that refuses to run
I have a Troy Bilt TB25cs string trimmer that refuses to run properly. Runs on 3/4 choke but nothing else. Just replaced the carb and fuel lines but to my suprise I haev the same issue.… read more
Briggs-Fan
Briggs-Fan
1,280 satisfied customers
i have a kohler v twin 25 that will start and run little
i have a kohler v twin 25 that will start and run little bit then die. it starts right back up. ive cleaned the carb, replaced fule filter air filter and fuel filter fresh gas etc.… read more
Curtis B.
Curtis B.
Technician
Associate Degree
31,895 satisfied customers
I have a subaru EX21 that goes to a Ridgid pressure washer
I have a subaru EX21 that goes to a Ridgid pressure washer and I need a new float and pin for the carburetor or may need to buy whole new carb if parts not available for it. I found your post from 4 y… read more
Curtis B.
Curtis B.
Technician
Associate Degree
31,895 satisfied customers
My P/W will not run non-stop. To run the gx390 with the oil
My P/W will not run non-stop. To run the gx390 with the oil sensor unwired do I disconnect all three wires or just the one that appears to be going to the block?… read more
Expert-Repair
Expert-Repair
Owner Kingsland Auto & Marine Services
Vocational, Technical or Trade Scho
11 satisfied customers
my desalt ds3532 pressure washer will not start. I changed
my dewalt ds3532 pressure washer will not start. I changed the oil the pump was stored properly used new gas the on/off switch broke, and i used a toggle switch help!… read more
Briggs-Fan
Briggs-Fan
1,280 satisfied customers
I have a power clear 180 snowblower. It wouldnt keep running
I have a power clear 180 snowblower. It wouldn't keep running after I primed it so I changed the fuel lines, cleaned out the carb, changed the oil, changed the spark plug and cleaned the fuel tank. Af… read more
Rick
Rick
Factory Authorized Trainer
Vocational, Technical or Trade Scho
4,218 satisfied customers
Honda gx 240 started running rough and backfiring. Eventually
Honda gx 240 started running rough and backfiring. Eventually got to a point where it wouldn't run at all. Checked and cleaned spark plug. Removed and cleaned out gas tank and filter and fuel line. Pu… read more
Jon K.
Jon K.
Small Engine Diagnostic Expert
Some College, military training,
2,995 satisfied customers
I have a John Deere 185. I am not getting gas to the carburetor.
I have a John Deere 185. I am not getting gas to the carburetor. Last weekend I replaced the fuel pump and I got it to run. Also there is a spring which goes to the governor linkage that was broken. I… read more
J.R.
J.R.
Vocational, Technical or Trade Scho
7,173 satisfied customers
got a briggs 18.5hp that starves for fuel after a ten minutes
got a briggs 18.5hp that starves for fuel after a ten minutes or so. I put on new fuel line, swaped carb, intake, muffler, and gas cap from a doner and get the same result. when it dies, I can pour ga… read more
Curtis B.
Curtis B.
Technician
Associate Degree
31,895 satisfied customers
i was running my pw for the last 3 hours - as it ran out of
i was running my pw for the last 3 hours - as it ran out of gad i added - it started right back up. the last time i added gas it didn't start. i added 4 stroke oil to make certain it wasnt low and sti… read more
J.R.
J.R.
Vocational, Technical or Trade Scho
7,173 satisfied customers
I have a 3400psi craftsman pressure washer with a Briggs and
I have a 3400psi craftsman pressure washer with a Briggs and Stratton engine. I changed the oil, spark plug and air filter. System starts up ok. After about 15 to 20 minutes using the machine, the eng… read more
RUSS
RUSS
SERVICE TECHNICIAN
Vocational, Technical or Trade Scho
1,723 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