Small Engine

Small Engine Troubleshooting Problems? Ask a Mechanic Now.

Ask an Expert,
Get an Answer ASAP!

We have a relatively new Onan LP generator, only run total…

Customer Question
Hi. We have a relatively...
Hi. We have a relatively new Onan LP generator, only run for a total of 34 hours. We just took it to an RV service station and had the oil changed. Now the generator does not work. It cranks but either does not come on at all or runs at the most for a few seconds. We checked the oil level and it is OK. Any other ideas?
Our generator is installed into a compartment in a Bigfoot camper so we cannot see the back of it to assess if the propane line was reattached correctly.
Submitted: 2 years ago.Category: Small Engine
Show More
Show Less
Ask Your Own Small Engine Question
Answered in 27 minutes by:
2/23/2016
Technician: Wayne, Engine Rebuilder replied 2 years ago
Wayne
Wayne, Engine Rebuilder
Category: Small Engine
Satisfied Customers: 11,307
Experience: many years on egine rebuilding, lawn mower,roto tiller,Truck,and small engines
Verified

Hi I'm Wayne

I will help you with this

this sounds like 2 things, low oil pressure

or yes the propane is not turned on, if it is running

only few seconds that is what is happening

Just out of Curiosity, why did you not bring it back , Too Far

I hope this helped you

Ask Your Own Small Engine Question
Customer reply replied 2 years ago
propane is on and we checked the oil level which is fine.
other thoughts?We are about 100+ miles from where we had the service done. we went there because they said they did Bigfoot maintenance; guess that didnt matter
Technician: Wayne, Engine Rebuilder replied 2 years ago

Hi Sorry fo delay,

had to pick up Grand kids from School

OH , Yes 100 miles too far

how many times did you try to start it

some times the filter and oil system needs to get primed

let me know, please

Ask Your Own Small Engine Question
Technician: Hank F., Technician replied 2 years ago
Hank F.
Hank F., Technician
Category: Small Engine
Satisfied Customers: 15,982
Experience: Certified on Onan and Generac generators
Verified

Hello, my name is ***** ***** I am going to assist you with this.

As you are well aware, this unit does not have an oil filter. It is a splash-lube system, and not a pressure-lube, so there is nothing to prime.

What is the serial number of this unit?

How long has it been since it was run regularly?

Ask Your Own Small Engine Question
Customer reply replied 2 years ago
Hello? I am disappointed in your response. I said at the beginning that we checked the oil level and that the propane was on, so your answer did not give me any more information.
Customer reply replied 2 years ago
the unit has been run a total of 34 hours. unfortunately, we did not know that we were supposed to "exercise" the generator at least monthly and we have not used it for at least 2-3 months.
Customer reply replied 2 years ago
the model # ***** ***** AND THE SERIAL # *****
Technician: Hank F., Technician replied 2 years ago

Try this.

Remove the air filter.

While cranking the engine, start spraying in some carb cleaner (do not use starting fluid).

Can you keep the engine running for 15 or 20 seconds on carb cleaner?

Ask Your Own Small Engine Question
Technician: Hank F., Technician replied 2 years ago

Wee you able to keep it running on carb cleaner?

Ask Your Own Small Engine Question
Customer reply replied 2 years ago
We took the generator to a repair shop so I will hopefully find out what the problem was. in the future, we will run it monthly!
Technician: Hank F., Technician replied 2 years ago

Yes, it is best to exercise them regularly.

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 Hank F. Your Own Question
Hank F.
Hank F.
Hank F., Technician
Category: Small Engine
Satisfied Customers: 15,982
15,982 Satisfied Customers
Experience: Certified on Onan and Generac generators

Hank F. 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

15,517 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

11,307 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
Well my question is regrding an Onan generaor 20kw, it is
Well my question is regrding an Onan generaor 20kw, it is getting a spark but I cannot get the generator to start. … read more
Hank F.
Hank F.
Technician
High School or GED
15,982 satisfied customers
I have an Onan 5500 LP generator which cranks, sputters and
I have an Onan 5500 LP generator which cranks, sputters and then dies. Fault code 15. 130 hrs. 2015. Oil changed recently. Lots of propane in the tank. I've checked all the obvious things. Anything ea… read more
Hank F.
Hank F.
Technician
High School or GED
15,982 satisfied customers
Our Onan 5500 lp generator keeps turning off in the middle
Our Onan 5500 lp generator keeps turning off in the middle of the night. We added oil. It started and then turned off again. … read more
Hank F.
Hank F.
Technician
High School or GED
15,982 satisfied customers
Have an Onan RVQG 2500 LP in 2014 Camper. Had no problems
Have an Onan RVQG 2500 LP in 2014 Lance Camper. Had no problems until just filled LP tanks and generator will not start. Starter goes but won't fire. Other LP appliances work (refrigerator and stove).… read more
Curtis B.
Curtis B.
Technician
Associate Degree
15,517 satisfied customers
I have an onan generator on an RV and it runs for anywhere
I have an onan generator on an RV and it runs for anywhere for 6 to 10 hours and then shuts off like it has run out of propane. The code is a red light on the panel that flashes or better said the red… read more
Hank F.
Hank F.
Technician
High School or GED
15,982 satisfied customers
G'day, we have a Cummins Onan RVQG 2500 LP. We are having
G'day, we have a Cummins Onan RVQG 2500 LP. We are having some trouble starting it. It will kick over and fire but will strop instantaneously.… read more
Hank F.
Hank F.
Technician
High School or GED
15,982 satisfied customers
I have a brand new onan generator on my food truck. It has
I have a brand new onan generator on my food truck. It has 7 hours. Model is HGJAD. It runs on Propane. At about 5 hours, the generator started shutting itself off and we noticed oil leaking in large … read more
Hank F.
Hank F.
Technician
High School or GED
15,982 satisfied customers
Hello, We have a 4 year old Gillette SP-120, 12KW LP standby
Hello, We have a 4 year old Gillette SP-120, 12KW LP standby generator that has been well maintained. It has about 1800 hours on it. When it was told to exercise last week by our inverter, it started … read more
Hank F.
Hank F.
Technician
High School or GED
15,982 satisfied customers
I have a new cummins onan 20 kw standby generator and the oil
I have a new cummins onan 20 kw standby generator and the oil is turning a milky white color. I drained the break in oil and changed the filter after 10 hours of service and it was clear. I refilled w… read more
Hank F.
Hank F.
Technician
High School or GED
15,982 satisfied customers
I have an Onan 2.5 kw propane generator with just 20 hours.
I have an Onan 2.5 kw propane generator with just 20 hours. I just had the oil changed and was running it yesterday. It sounded like it was lugging for a short time and issued a very large cloud of wh… read more
Hank F.
Hank F.
Technician
High School or GED
15,982 satisfied customers
I have a Onan 5500 lp generator, model HGJAB-1119, with about
I have a Onan 5500 lp generator, model HGJAB-1119, with about 12 hours run time on it. The generator runs great if both propane tanks are open. When one tank is empty or closed the generator starts an… read more
Hank F.
Hank F.
Technician
High School or GED
15,982 satisfied customers
Hank, I have a 1996 Lance cab over camper with a Generac Impact
Hank, I have a 1996 Lance cab over camper with a Generac Impact NP 34 generator. Model 00803-4, Series NP-34lp, Serial No.(NNN) NNN-NNNN 28.3 amps, 3400 watts. The generator has 96 hours of service. W… read more
Hank F.
Hank F.
Technician
High School or GED
15,982 satisfied customers
My propane generator on my 14 year old rv will not stay running.
My propane generator on my 14 year old rv will not stay running. Its seems to be getting fuel because it starts but does not keep running. U can run it all day by holding the start button down on it b… read more
Hank F.
Hank F.
Technician
High School or GED
15,982 satisfied customers
I have an RV QG 2500 LP generator in a truck camper. While
I have an RV QG 2500 LP generator in a truck camper. While traveling during hot weather (85 -100 degrees) the generator blows out oil at the rate of about 1 oz per hour. I check and top off oil about … read more
Hank F.
Hank F.
Technician
High School or GED
15,982 satisfied customers
My onan generator for my 1998 Four Winds Majestic RV is not
My onan generator for my 1998 Four Winds Majestic RV is not working. The generator starts but won't power the microwave, AC, heater, fridge. It was working the last time we took it out. All of a sudde… read more
Hank F.
Hank F.
Technician
High School or GED
15,982 satisfied customers
I have an LP Kohler RV Generator, model K582EP or 7CKM22-RV
I have an LP Kohler RV Generator, model K582EP or 7CKM22-RV depending on where you look. When I try to start the engine, the large gas pressure regulator (toward the back side of the engine on the rig… read more
Deere Dr
Deere Dr
service manager
Vocational, Technical or Trade Scho
236 satisfied customers
the part# 0541-0534 is real expensive for the LP gas regulator
the part# XXXXX is real expensive for the LP gas regulator is there another source for this part since onan doesny make it i have a 6.5nhmfa26115c lp generator… read more
James W
James W
Small Engine Troubleshooting Expert
Bachelor's Degree
2,986 satisfied customers
Generac generator will start and run. When I turn on the ...
Generac generator will start and run. When I turn on the generators brakers the motor does not idel up and it stops running in 10 to 15 seconds. Generac RV Generator LP Impact Plus 2, 20 hours on gene… read more
roger
roger
owner of small engine shop
Vocational, Technical or Trade Scho
350 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