my lawnmower runs as lond as you pump primer but after it burns fuel in carbeurator it dies out?

Answer 1

<>Sounds like you have a fuel flow problem. Many lawnmowers have a plastic tube that feeds the gas from the tank to the carbuerator. Yours may be kinked or clogged, or there may be debris in the fuel tank or, if the machine has been sitting a long time, the gas may be bad.. Removing the tank is usually a matter of 2 or 3 screws. Take it off and discard the gas and clean out the tank, check that plastic tube for kinks or clogs, put it on back together and try some fresh gasoline.

Answer 2

If not the lines. it may be in the carburator itself. Inside the bowl of the carb (which can be removed by loosening the screw in the center of the bowl under the carburator) there is a float with a valve that allows fuel to flow into the bowl. When you loosen the bowl fuel should flow freely if it is functioning properly. If no fuel flows, carefully allow the float to swing down, and check the square pin in the valve to see if it moves in and out freely. This pin is connected by a small wire, so be careful. Observe how it is put together before removing anything, and reverse the process to reassemble it. This valve will clog at times when the fuel is old. If the fuel smells like paint this is the likely culpret. Replace the fuel with fresh and try starting it after reassembling the carburator after cleaning with a spray "choke cleaner".

Good luck!

Answer 3

Start simple
Remove gas......usually a tube runs from tank with squeeze connectors. squeeze them in and drop tube, allow gas out /don't forget to let it run into a container.

Don't forget to check setting on carbeurator.

Put new filter on the line( usually red plastic/looks like a top ) check first for what kind.

Then change primer bulb.

If I were you I would go ahead a finish the tuneup

Add new gas

Change oil (life of the machine)

Change air filter (breath of machine)

Change and set plug (heart of machine)

Old age prevents me from doing all of my own work on rider anymore.

Good Luck! If you do this at least 2 time a year your mower will last a long time.

My new finagled mower has a filter just like a car or truck......I change filter and oil 3 or 4 times a season. Wont hurt it, can only make it last longer!
And over all tuneup at least 2 times per season.

Answer 4

The fact its running (even though you have to hold the primer) means its getting fuel.....
Just means the carb needs a cleaning.... (Hope you used a fuel stabilizer?) take the carb off and apart... if its not gummed, you may get by with blowing every little hole out with compressed air...
Also do check the primer bulb.... it should only have one hole (older styles didn't) but one hole right in the middle made into it... not cracked or leaking.

Answer 5

Replace the small fuel lines and primer bulb,you have an air leak.

Answer 6

it MAY be a leak in the primer bulb,, IT IS NOT all that other stuff these guys mention,,, not all carbs have floats,, yours probably has a simple diaphram carb. these can get holes or just stiff over the winter storage, so replace this and it wil run like a deer!!

Answer 7

if you plan on keeping this mower awhile and you want to do the repaires on it you should buy a manual that tells you how to troubleshoot and fix that particular motor. you can get them on e-bay or at most parts stores. the book will tell you the specs. that you need to know.

Answer 8

check your fuel line or fuel pump if you have one

Answer 9

WOW