Small Engines (Lawn Mowers, etc.): Fuel Shut Off Valve?, electric solenoid, riding lawn mower


Question
Let me explain my problem. I have a riding lawn mower with a 17HP Briggs motor and sometimes when I finish mowing the fuel tank empties into the carburetor eventually finding it's way into the oil. It is a gravity fed fuel system. I assume the float is sticking open. It did it once so I dismantled the carburator and cleaned it and it worked for two months then it happened again. Nothing looks wrong with it. Anyway what I would like is something that automatically shuts the fuel off when you kill the motor. Any thoughts on something that would do that or another way to fix it?

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Followup To
Question -
My question is not in the repair category but you may be able to help. I am looking for a in-line fuel shut off valve for a small Briggs motor. What I want is an electrical valve that opens automatically upon recieving electrical current. Also it would automatically close when power is off. This is not a factory part, just something I want to add. Have you seen such a product? Where might I find one?
Answer -
Obviously a server is not working somewhere...I thought something was up when I didn't receive any questions.

I have seen them but not sure where to find them.  I'd bet there expensive.

Does it have to be electric?
Let me know.
Eric

Answer
A manual inline valve is the cheapest way to go but I admit I'd like an electric solenoid for automation and wife proofing.

I found one that might work...check the site.


http://www.jeffersonvalves.com/valvesmodels/1326.asp

Let me know if you find more info.
Eric