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Why does my honda gx240 not stay running

Starts but does not run after a few seconds

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Most likely, the carbureator needs ot be rebuilt.

Posted on Sep 03, 2014


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SOURCE: New NorthStar generator with Honda GX620 runs only a few seconds.

caborator needs cleaning

Posted on Aug 02, 2009


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Why does my honda gx240 generator not stay running?

check oil level you should have it up to the first thread of filler hole without it over spilling if so drain to proper level if oil is contaminated with fuel and over filled your carburetor float may be stuck open,if so have the carburetor cleaned or serviced or you can try and clean it yourself.give me an update of your status,honda tech for 30 years

Aug 27, 2014 | Honda Electrical Supplies

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Oil comeing out exhaust and gas in oil but runs for a few minutes and shuts down

sounds like the needle valve is not seating and over flowing the fuel into the crankcase change the valve and seat then change the oil a couple times

Apr 27, 2012 | Honda Horizontal Engine 8 HP OHV 2:1...

1 Answer

2000 honda cvic will not start but if you push on the it will try to start but will not stay running

Do you notice anything unusual with the dash lights when you turn the key on. All the warning lights should illuminate. If they do not but then come on as you start to rotate the key into the start position than you probably have a bad ignition switch.

If you turn the key to the start position and hold it there (only do this for a few seconds) will the car stay running until you let go of the key? Another clue that the ignition switch may be bad.

if you turn the key to the start position and the vehicle starts slowly let the key rotate back to the run position until the starter disengages. If the vehicle continues to run let go of the key. If the vehicle stalls than the ignition switch is definitely bad.

I’m happy to assist further over the phone at

Feb 24, 2012 | 2000 Honda Civic

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I have a 8 hp gx240 will star but wont stay running

These carbs are hard to clean up. They are fairly cheap to replace outright so I would suggest that as a fallback option.

I would check the float level and make sure the inlet needle for the float is clean and moving freely. It sounds like you are getting fuel at a slower rate than the engine needs to continuously run. You can also have restrictions upstream in the fuel valve, fuel filter or fuel pump. That should be easy to test. You just take the fuel line off the carb and crank the motor and collect the fuel. More than an ounce or two in 10-20 seconds of cranking would be good.

Be safe and good luck!

Dec 25, 2011 | Honda 8 HP Engine

1 Answer


Possible that the engine is not getting sufficient fuel for running and so the choke action is needed. You need to check if the oil switch is cutting off the power, - if so replace oil.
Secondly the fuel settings might need a check up. You might need to clean/reset the plugs/spark gaps and also overhaul the carburator to solve this issue.

Jul 08, 2011 | Honda Electrical Supplies

1 Answer

Gx240 honda engine starts fine, but coughs and sputters with heavy exhaust; then it runs smoothly for 2 to 3 seconds and then shuts itself off. I checked and there is plenty of gas and the correct amount...

Sounds like it could do with a cleanout of the carburettor. Also check for dirt/rust in fuel tank that could be restricting fuel flow to carby.

Aug 23, 2010 | Honda 8 HP Engine

1 Answer

Stored for a year. i changed the spark plug and the fuel. i also cleaned the carb. water runs through the pump. but it wont stay running. it wants to start but only runs for a few seconds. i think it...

Sounds like the float my be partially stuck closed. It allows enough fuel to run a few seconds then the engine uses it faster than the float lets the fuel back in. I would remove the float bowl and flip the float up and down a few times to make sure it is free and try it again.

Jun 11, 2010 | Honda Pressure Washer PSI 3000

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Sounds like the fuel pump may be going out. I'd have it checked.

Dec 15, 2008 | 1988 Honda Prelude

1 Answer

My car wont stay running

Does the engine die as soon as you release the key, or does it run for a couple of seconds after you release the key and then die? If it dies as soon as you release the key, try holding the key for a few seconds and see if it will stay running as long as you are holding the key (the starter will make a grinding sound while holding the key but won't hurt anything). If it stays running while you hold the key then dies when you release it, that indicates that the ignition switch is bad.

Jul 01, 2008 | 1992 Honda Accord

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