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94 300 dies like vaperlock but vents and screens are clean

1994 300 have there been any problems with fuel control seeping air I have replaced the lines valve flows free does same on reserve or regular tank and vent is open can ride about 900 feet it dies will restart on chock after 30 seconds

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  • tkierstyn Jul 18, 2009

    When unit dies I can quikly remove line and it takes a couple seconds and fuel will flow again

  • Dan Banton Jan 02, 2012

    Hey check the fuel filler cap on the tank and make sure that the vent hole and vent line are not plugged.

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How to replace rear brakes on 1994 polaris 300 4x4

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You might have trash in carb.need flush it out might rebuld carb

Posted on Jul 18, 2009

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Posted on Jan 02, 2017

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I have a 2006 arctic cat 400,changed bad gas after sitting and will start easy but dies when i throttle up


Need to clean that carb thoroughly. Clean or replace air filter, check gas tank vent on cap, make sure you have a good fuel stream coming out of the fuel petcock. The old gas could have clogged the petcock filter.47154345-a373-435a-ad53-8a3f8dc531bc.jpg In the picture you can see the arrows pointing to the reserve and the main. This is where the fuel comes in and it is a very fine "plastic screen mesh". This can become clogged. The one pictured us from a cat.

Feb 13, 2017 | ATVs

1 Answer

Arctic cat 500 auto


Hi Robert, Seems like your fuel pump is on it's way out, There's three links below, The 1st link is a youtube video showing how to test and fix a ( CAR ) fuel pump, The 2nd youtube video is a guy fix/clean an Arctic Cat EFI fuel pump and the 3rd is a youtube video of a 1998 Arctic Cat ZL 500 fuel pump...I hope they help....CHEER.

Fixing Car That Shuts Off Randomly


Arctic Cat EFI Fuel Pump Fix Clean Not Replacement

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Apr 02, 2016 | ATVs

1 Answer

It will start but dies when I give it gas, what will cause that?


Hi Jeremy:
Opening the throttle will allow more air into the Carb.
If there is not enough gas available, that will lean the engine out and it will die.
I would recommend that you start you trouble shoot by draining and cleaning the carb, gas tank and fuel filter. Start over with fresh fuel. If the problem persists I would remove the carb and clean it carefully with compressed air, then try again.
If tat does not cure it, Reply as a comment to this post and we'll try some more.
Cheerfuls.

Dec 01, 2015 | ATVs

1 Answer

4 wheeler has sat for 3years. New carb diaphragm & idles fine. hit the throttle & it backfires & dies. Carb has been apart numerous times. Starts right back up. Not flooded.


Have you changed the fuel out, bad gas can cause this, also fuel lines and filter should be replaced as the ethanol eats the lines and filter.
Those hoses sound like the vents for the tank and carb.
When you replaced carb did you tighten the rubber boot that mounts the carb to the engine? if there is a crack in this boot it will suck air and cause this engine to stall,

Oct 15, 2015 | Polaris ATV

1 Answer

Econ Quad Viper 70 4 stroke won't stay running unless choke is one quarter or more closed. Occasionally pops through carb and bogs down if accelerated.


Hi Linda... Clogged carb jets and be a problem. Cleaning them is often very difficult due to the size of the orifice. sometimes welding tip cleaners or sewing needles may work. Forcing air is a good way but the acid test is to look into the orifice to verify you see light.

Another thought: Sometimes the fuel caps stops venting and the motor will act like its running out of power, rightfully so as it's running out of fuel. The vent in the fuel cap can be partially plugged or completely and the engine will act accordingly. Best way to test this is to remove the fuel line after the petcock(off/on valve) and watch that it flows fuel well. Also check the petcock filter to verify it's not clogged and check the fuel line to make sure it's not crimped.

You're problem doesn't sound electrical but I'd try to eliminate all fuel related problems first before moving to electrical as electrical trouble shooting can be a bear.

The air mixture adj screw sometimes has an "O" ring and sometimes not. Check with parts fiche for your model carb to know which.

Dec 21, 2014 | ATVs

1 Answer

Engine dies out after driving 1-4 mile on a 2010 honda trx 420


I do need more info.. BUT, #1 the main ignition coil could be going bad..when it gets hot (electrically), it starts breaking down internally, #2, could be a clogged fuel system,, the system is vented to allow fuel to flow through the petcock to the carb. If the fuel tank is totally sealed, it will vacuum lock. Let the atv sit for a few minutes, then it repeats this cycle? #3- make sure the vent tubes on the carb are clean and will flow air through them!! These are the three most obvious choices and a great starting point. Make sure your air filter is clean and in good shape!!!!!!

Jun 19, 2014 | RTO 200cc Full Size Four Wheeler ATV

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.

Apr 21, 2017 | Polaris ATV

1 Answer

Wont idle or dies when the throttle is released


sounds like the carburetor needs cleaned and or rebuilt. or you could have a vacuum leak..

Apr 17, 2014 | ATVs

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