Riding Mower Gas Cap Vent

On each side of the chamber are small openings where air is able to enter.

Riding mower gas cap vent.

The fuel cap a k a. If your motor runs for a few moment and then dies but starts back up this tip may be for you. Gas cap on lawn mowers chainsaws and other gasoline powered outdoor power equipment is a magnet for dust dirt grass and other debris. Many people use a dry rag to remove the crud but i ve found that the most efficient way is to use a paint brush.

If the fuel cap vent is clogged air won t be able to enter the tank and a vacuum or vapor lock will occur. 4 1 out of 5 stars 249. 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.

As fuel is consumed by the engine the level in the fuel tank lowers. To make up for this the fuel cap uses a small vent to allow air to enter the tank. This stops the flow of fuel to the carburetor causing the engine to stall. Amazon s choice for craftsman mower gas cap.

The cap screws shut and this chamber fits relatively close inside the intake tube of the fuel line running to the tank. With out the vent the engine will die 10 to 45 minutes depending on how much gas is in the tank. 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 newer caps are venting from the rubber gasket inside the cap and they are the worst thing someone ever thought of. 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.