Fuel problem - ATV Forum - All Terrain Vehicle discussion for Honda, Yamaha and more ATVs
 
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post #1 of 1 (permalink) Old 10-30-2019, 10:42 PM Thread Starter
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Join Date: Oct 2019
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Fuel problem

have been working on a fuel starvation issue on my Arctic cat 250 now for several weeks with no results. So far I have rotated the tank 180 degrees, shortened the fuel line to about 6 inches, swapped out petcock and gas lines to 5/16", removed the in-tank filter, and installed a large inline fuel filter.

Here's the problem. After long up hill climbs or long full throttle runs, the gas line runs dry. It's as if there is a vacuum lock or some type of air back pressure that will not let adequate fuel come out of the tank. The fuel will not flow even when I remove the gas cap, but if I disconnect the fuel line from the carburetor, fuel flow is excellent.

I even primed the inline filter to capacity prior to completing my gas line connection, but after about five minutes of riding, the fuel filter was empty and did not refill.
Charlie Foster is offline  
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