Riding Mower Gas Cap Vent

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Riding mower gas cap vent.

If your motor runs for a few moment and then dies but starts back up this tip may be for you. This stops the flow of fuel to the carburetor causing the engine to stall. 1 16 of 364 results for craftsman mower gas cap briggs stratton 591003 fuel tank cap. As fuel is consumed by the engine the level in the fuel tank lowers.

On each side of the chamber are small openings where air is able to enter. The vented gas cap has a chamber under the plastic cap handle that inserts into the fuel fill line. These chambers lead to the pressure valve which as the level in the tank decreases allows air inside to remove any possibility of a vacuum forming. With out the vent the engine will die 10 to 45 minutes depending on how much gas is in the tank.

Amazon s choice for craftsman mower gas cap. Free shipping on your first order shipped by amazon. Check gas tank cap vent hole in same may be plugged or cap bad try running with cap loose see if that cures problem other possibility tank has a load dirt water in bottom plugging outlet with vibration if tractor has a shutoff valve between tank filter check valve may have dirt in it or valve going bad. Get it as soon as fri sep 25.

This vent is just large enough to allow air into the tank creating enough backpressure to aid in fuel delivery to the carburetor. The cap on your mower s gas tank is vented with a small hole. To make up for this the fuel cap uses a small vent to allow air to enter the tank. If the fuel cap vent is clogged air won t be able to enter the tank and a vacuum or vapor lock will occur.

The cap screws shut and this chamber fits relatively close inside the intake tube of the fuel line running to the tank. The newer caps are venting from the rubber gasket inside the cap and they are the worst thing someone ever thought of.