WA-14-1 Walbro Engine - Overview

This authentic OEM metering diaphragm assembly is housed within the carburetor of your lawn and garden equipment. Positioned between the carburetor body and the fuel pump, it regulates fuel delivery and maintains the air-fuel ratio within the engine. It has a self-adjusting vacuum system and responds to the amount of fuel being drawn into...Read more the engine. When the engine runs at higher speeds, more fuel is pulled in and the diaphragm compresses. As a result, the pin in the center of the diaphragm pushes against the metering level and lifts the regulator inlet needle, letting additional fuel flow from the pump into the reservoir. If the assembly malfunctions, you may experience engine stalling, rough idling, or notice fuel odor, pooling, or dripping around the carburetor area. To remove the metering diaphragm, refer to your user guide for instructions on locating and accessing the carburetor. This typically involves removing the fuel pump cover screw and pump cover, followed by the fuel pump diaphragm and gasket. Remember to blow through the external pulse hole on the body casting and remove the filter screen before proceeding to remove the four screws securing the metering diaphragm plate and the metering diaphragm itself. Please note that this replacement part is sold individually.

This is a genuine Walbro replacement part. The needle spring is commonly found in Walbro carburetors, connected to the idle needle. Please be aware that there are different springs used in the machine. Refer to the parts diagram to be sure of ordering the correct part. This item is made of metal, and is sold individually. You may need a screwdriver to replace this part.

This is a genuine OEM sourced part which is specially designed for use with Walbro carburetors. It is an identical replacement for a missing or a faulty spring that applies tension on the metering lever. It is a high-quality component which is made of durable metal and is sold individually. Keep in mind the hardware to secure it is sold s...Read moreeparately. Please make sure to refer to the appropriate diagrams of your model for the correct location and application of this spring.