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Why does the carb keep flooding?

Puts gas in engine. Checked floats and cleaned carb

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Too late to use a cleaner, its time to take it apart and clean, adjust it all. might need a rebuild kit to replace needle valve and seat also.

Posted on May 03, 2015

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Either the needle and seat are worn or the float is ruptured an sinks to the bottom of the bowl.
The needle and seat, along with the floats,are the only mechanical part that stops the fuel flow.

Posted on Apr 28, 2015

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Need a cleaner like amsoil ,BG or an outboard product. Carb is bad cause of ethanol gas. It ruins parts. Cars were nevr made to use it

Posted on Apr 19, 2015

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In the absence of something like a faulty or porous casting of the carb allowing fuel to bypass the float valves then sticking or leaky float valves, sticking or punctured floats or an excessive fuel line pressure must be the problem.

Where no isolating tap is fitted to a gravity feed system the float valves must be virtually perfect and the only way to ensure perfect seating is to examine the surfaces under a strong magnification and then verify correct seating by using a vacuum pump and gauge.

An excessive line pressure can be caused by a blocked fuel tank breather.

Posted on Apr 19, 2015

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1 Answer

Cheapy 4 wheeler is leaking gas bottom tube of carb.. took apart and cleaned float is working put back together still leaks???


the float is not what needs cleaning.. its the needle and seat that the float controls that needs cleaning.. this is what regulates the flow of gas into the carburetor float bowl.. -- #32 on this exploded view..
http://www.carbparts.com/mikuni/vm18_144.gif


vm18_144-bzhe2oey0b0e11an1gziaszn-4-0.gif

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08 outlaw 90 no start clean carb run great 2 weeks cuts off few times start back then no start air cleaner bad clean crab no start plug drippin wet run 4 few gas hafe off


if the plug/s are wet , that is flooding and that is excessive fuel or float level , probably from a problem in the needle and seat area where the fuel supply is not being controlled
remove the needle and seat and clean all dirt and rubbish from the needle ans seat area
could come from rust and dirt in the tank so consider an inline fuel filter before the carby/s

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could be the float in carb is stuck shut . they have to breathe also you know .

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Why does my 2009, Arctic Cat 300 DVX bog out after 10mins of riding it?


Sounds like it is running rich. Make sure the choke is not on or stuck. I would pull the carb and clean it with carb cleaner, look for any kind of sediments or crud. Is your air filter clean? It does not take much to make your float stick and flood your carb. Make sure everything is clean and all jets are clear.

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My four wheeler gets spark and gas to the carb but wont start what else could it be?


Carb could be dirty, float stuck or choke stuck. Pull plugs, crank engine and see if you are getting raw gas in the cylinder(s). If you don't get gas to the cylinders, you won't start. You also could have a flooded carburetor.

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My Suzuki Eiger 400 starts hard then once running is great.


The carburetor choke valve might be stuck open or not closing when the engine is cold. The engine needs a richer mixture to start. Too rich a mixture (flooding) can also cause trouble. Turn the fuel valve off to be sure the carb isn't leaking when not in use. If it smokes black on startup, it's flooding. Also check the condition of the spark plugs.

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Sounds like a passageway may still be clogged. I suggest that you try dipping it in carb solution for a couple of hours, then rinse and blow out everything.

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1 Answer

I have a 2003 polaris/330 trail boss with a fuel problem. i had carb rebuilt at a shop .cleaned, new needle & seat installed. new plug, carb vent/ equalizer cleaned, tank vent clean. starts fine, runs...


there's a vent on the carb they might've have missed, the line could be clogged. insects and mud get in them. plus it could be the petcock on the tank. take it out and make sure the screens, are cleaned etc.

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2 Answers

Where do fuel lines go ? when i turn on the gas fuel runs out on the ground


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