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I have an Onan 7000 Marquis gold. Runs without the air
I have an Onan 7000 Marquis gold. Runs without the air filter, but blows excessive fuel out the vent that returns unused fuel back in to the carb. cleaned the reed valve. Any suggestions? … read more
Curtis B.
Curtis B.
Technician
Associate Degree
32,351 satisfied customers
Runs maybe 5-10 min great put load on 1-2 min shuts off?
runs maybe 5-10 min great put load on 1-2 min shuts off ? … read more
Hank F.
Hank F.
Service Technician
High School or GED
5,366 satisfied customers
In a newly-purchased Toyota Sunrader, I have an Onan 2.8
In a newly-purchased Toyota Sunrader, I have an Onan 2.8 Microlite. This rig sat unused for quite a while, and I have had a mechanic service the carb, basically cleaning it up, and it ran for him and … read more
Wayne
Wayne
Engine Rebuilder
Vocational, Technical or Trade Scho
2,108 satisfied customers
I have a Onan generator. Model no.4KYA26100K. Serial no.,
I have a Onan generator. Model no.4KYA26100K. Serial no., E070058929. Generator starts right up, then quits after about 10 mins. I checked when this happened the first time and found it was low on oil… read more
Hank F.
Hank F.
Service Technician
High School or GED
5,366 satisfied customers
I'm ***** *****. I left the fuel valve open and the engine
Customer: Hi I'm ***** *****. I left the fuel valve open and the engine flooded. I drained the oïl, cleaned the intake manifold and carb, replaced the plugs. (OHVI 992 engine). It starts fine but will… read more
JohnF2015
JohnF2015
High School Diploma
1,271 satisfied customers
Have a JD 317 with the Onan B43G eng that is blowing oil through
Have a JD 317 with the Onan B43G eng that is blowing oil through the breather tube into the carb filter and makes it smoke. If I hold my finger over the tube it will build some pressure after a while.… read more
Curtis B.
Curtis B.
Technician
Associate Degree
32,351 satisfied customers
I have a problem with an onan engine, which is mounted on a
I have a problem with an onan engine, which is mounted on a wheelhorse lawn tractor. Its throttle controlled and runs good at 2000 RPM with the choke slightly closed. I've cleaned the carburator and r… read more
Hank F.
Hank F.
Service Technician
High School or GED
5,366 satisfied customers
I have a john deere 316 with an 18hp Onan engine. My friend
I have a john deere 316 with an 18hp Onan engine. My friend took it apart last year and practically rebuilt it. The engine ran like a dream. after sitting this winter I start it and I have to choke it… read more
Doug E
Doug E
Vintage M/C restorer
Vocational, Technical or Trade Scho
1 satisfied customers
Onan 4000, model K generator. unit has been sitting up for
Onan 4000, model K generator. unit has been sitting up for about 6 months. Would not crank, gave a few small burst of starter fluid, fired for a few hits so know fuel was problem. Emptyed fuel bowl un… read more
RUSS
RUSS
SERVICE TECHNICIAN
Vocational, Technical or Trade Scho
1,723 satisfied customers
7 KW Motor home Onan. Would not start. Cleaned Carb. Cranked
7 KW Motor home Onan. Would not start. Cleaned Carb. Cranked and ran normal for +- 3 min. then started backfiring through carb and tail pipe.… read more
Hank F.
Hank F.
Service Technician
High School or GED
5,366 satisfied customers
I have a Onan Marquis 7000 that needs servicing but I cant
I have a Onan Marquis 7000 that needs servicing but I can't find a model number to get the parts. It ran last summer but has never been serviced and quit this summer. Also the remote start button does… read more
Hank F.
Hank F.
Service Technician
High School or GED
5,366 satisfied customers
i have a baf last letter b that runs only when starter fluid
i have a baf last letter b that runs only when starter fluid is used and it starts up and runs forever. After I shut it down in about 15 if you try and start it it just will not start unless you use s… read more
Hank F.
Hank F.
Service Technician
High School or GED
5,366 satisfied customers
the engine starts and runs for 5-10 seconds and shuts off.
the engine starts and runs for 5-10 seconds and shuts off. oil change, cleaned the carborator, clean fuel filter, fuel pump is working fine. after priming engine, its starts every time and runs for a … read more
Hank F.
Hank F.
Service Technician
High School or GED
5,366 satisfied customers
i was mowing with my toro 720 groundmaster, with a 18 hp kohler
i was mowing with my toro 720 groundmaster, with a 18 hp kohler engine, when it started blowing white smoke like crazy out the exhause, i mean big smoke, i checkedd the oil and my son had overfilled b… read more
Jon K.
Jon K.
Small Engine Diagnostic Expert
Some College, military training,
2,995 satisfied customers
We have a 1998 Gulfstream SunSport RV, with an Onan Generator.
We have a 1998 Gulfstream SunSport RV, with an Onan Generator. Only 15,000 miles on vehicle, and 389 hours on generator. I will not start. Tried to re-start it for the season. It ran last year. Seems … read more
Hank F.
Hank F.
Service Technician
High School or GED
5,366 satisfied customers
Hi, I just rebuilt my P218 Onan engine in my JD 318. I honed
Hi, I just rebuilt my P218 Onan engine in my JD 318. I honed and replaced rings, cam and main bearings. I started with std rings, but the gap was too big even though the bore checked out within spec. … read more
Hank F.
Hank F.
Service Technician
High School or GED
5,366 satisfied customers
I have an Onan performer 20.5 hp motor on a Lincoln Welder.
I have an Onan performer 20.5 hp motor on a Lincoln Welder. It starteds really hard, when it finally starts it runs great for about 10 min. Ive replaced the fuel pump, spark plugs,fuel and vacumn line… read more
Hank F.
Hank F.
Service Technician
High School or GED
5,366 satisfied customers
1996 Honda GX620. on a Dingo Digger engine will run for a
1996 Honda GX620. on a Dingo Digger engine will run for a few hits and not start now at all. It would run after taking Carb. off and cleaning but then went back to same problem of not running to run. … read more
Hank F.
Hank F.
Service Technician
High School or GED
5,366 satisfied customers
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Meet the Experts:

Curtis B.

Curtis B.

Technician

32,351 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

2,943 satisfied customers

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

Wayne

Wayne

Engine Rebuilder

2,108 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

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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.

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