Thursday, January 7, 2010

Why does my lawn tractor leak gas into the oil when it runs or sits?

While you remove the carburetor bowl to inspect/clean the needle and seat like the previous person suggested, I would shake the float to make darn sure that there was no gas in it. As the float gets old, the solder joints where they joined the bowl together can and will start leaking. If there is gas in it, it will always allow gas to leak into the carb. Good luck...P.S. most of the time, you can replace the bowl and needle for under 20 bucks.Why does my lawn tractor leak gas into the oil when it runs or sits?
If the gas tank is higher than the carburetor the carb. will have a float valve to stop fuel flow when its Bowl is full. If the float valve '; Needle '; is worn or sticking the gas will over fill the bowl and run into the cylinder when the intake valve is open. This Flooding of gas will leak around the piston rings and into the crank case!

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