Parts for Briggs & Stratton 12T807-0807-99: Carburetor Assy Parts

The carburetor float is housed in the carburetor and is used to help control the fuel flow. It adjusts the needle valve and ensures that the appropriate amount of fuel reaches the carburetor bowl. This helps provide the right mixture of air and gasoline for the engine to operate at optimal performance. Over time, the float can become worn or detached, or the pin could come loose. When this happens, the flow is affected, and the engine will not operate correctly. If the float isn't working correctly on a lawnmower or another small engine, it might be time for a replacement. This replacement part is a genuine OEM product designed to be used with many Briggs & Stratton engines, including lawnmowers, pressure washers, generators, and other lawn and outdoor equipment engines. It is sold as a single unit with the metal cotter pin included. There are more than 150 compatible machines that this unit will work with. If your lawnmower isn’t working as it should or if the float has come loose and can't control the flow appropriately, this OEM replacement can get things back in working order.

The carburetor has a float valve to control the flow of fuel from the tank to the reservoir. A float valve has three main components - a float, seat, and a needle. When there is adequate fuel level in the carburetor, the float will rise, prompting the needle to close against its seat and prevent overflowing. If the float valve is malfunctioning, it may overflow the carburetor. In some cases, it doesn't provide ample fuel into the carburetor. If you suspect that the needle and seat are faulty, don't waste another moment. Over time, a defective needle and seat can lead to more expensive repairs like a leaking carburetor and even an engine misfiring. For a genuine OEM replacement, get this Midwest Engine 398188 Needle & Seat Kit. Please take note that the Midwest Engine 398188 Needle & Seat Kit only comes with the needle and seat. If you also need a genuine Midwest Engine float replacement, you will need to purchase it separately.

The choke return spring is a part that is used on many small engines in lawn and garden equipment. The part is a component in the choke system that ensures that the correct tension is applied to keep the choke lever in the appropriate position. If the choke return spring is broken or begins to malfunction, the lawnmower may have issues keeping power and running correctly.If the choke return spring is damaged or weak, it will prevent the choke from returning to the correct position. This can cause the engine to speed up and accelerate more quickly than desired. The air filter housing will need to be unscrewed to access the choke return spring. Take the wire off the spark plug and remove the boot from the plug. Remove the spring from the linkage and then clip on the new one. Replace the other components to get the equipment to work again.This choke return spring is an authentic OEM replacement part directly sourced from the manufacturer. It is sold individually. The spring is compatible with various wood chippers, lawnmowers, and pressure washers by Briggs and Stratton, Simplicity, Toro, Lawn-Boy, and Cub Cadet.