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Author Topic: gx390 fuel system  (Read 1585 times)
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Chris Matuschka
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« on: July 09, 2013, 05:30:53 PM »

Guys, I have a gravity fed fuel system on my gx motor. Running a stock style carb will I need to add a fuel pump or will it flow enough fuel? And if I need a pump will the needle valve need any mods to keep from overflowing? I am going to start running it with just a billet wheel and valve upgrades until I save up for a can and rod so I can get a feel for the chassis.
Thanks
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George Herrin
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« Reply #1 on: July 09, 2013, 06:38:21 PM »

if you find you need a pump the carb will handle it with no mods.
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George Herrin #6
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Chris Matuschka
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« Reply #2 on: July 09, 2013, 07:56:55 PM »

Thanks George, trying to keep things simple but reliable.
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heymow.com - Lawn Mower Racing Forum
« Reply #2 on: July 09, 2013, 07:56:55 PM »

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