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Generqator stalls The generators starts but does not keep running. It quits or stalls after several minutes.

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That's a fuel system problem.

(Depends how old it is, but it should have Electronic Ignition. Electronic Ignition usually just goes out all at once)

Start diagnosing with the simple stuff first.
1.Check the air filter. Make sure it hasn't become wet. (Rain) Make sure it is clean.
A clogged air filter from being soaked with water, or clogged shut from dirt, will have the above symptom you listed.

2.Gasoline engine:

A.Some have a sediment filter installed in the bottom of the gas tank. Screws right up into the tank, then the fuel hose connects to it.
Observe whether the fuel tank is clean on the bottom.
Sediment will disperse throughout the tank when the engine is not running, then collect around this filter after the engine has run for a while.
Result, is clogging the filter until no fuel can pass through.
(Engine running, fuel is brought through the sediment filter. Engine off, the sediment falls back onto the fuel tank floor, leaving the filter open enough to draw fuel through again)

[I have also seen the rare occasion, where someone put a raw egg in the gas tank, to stop a gas tank leak.
(?) Don't ask me, I have No idea!]

B.Be sure the fuel tank ->cap has the vacuum orifice open. This orifice allows air to enter as fuel is being drawn out. If the tiny orifice is clogged shut, a vacuum is made in the fuel tank, and the engine starves for fuel.

C.Check the inline filter in the fuel hose. (If this model uses an inline fuel filter. If no inline fuel filter is used on this model of generator, I would advise buying one, and installing it) See if air will pass through. (Use air hose on compressor)
Make sure the filter is installed in the correct direction, There is an IN and an OUT. (OUT to carburetor)

3.Diesel engine
I would advise taking a generator with a diesel engine to the shop, but you can check the air filter, fuel tank for sediment, and also check the inline fuel filter, first. (If it has one)

Posted on Sep 09, 2009

Testimonial: "I greatly appreciate these tips and ideas. I will try them out as soon as possible. thank you very much."

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  • Master
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Make sure the on/off to the gas tank is on and no craks in the gas line. aslo check and see if you have any slack on the governer's spring

Posted on Sep 09, 2009

Testimonial: "The vent for the gas tank is on. I appreciate these ideas amd will check them out as soon as possible. thank you"

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