Tecumseh 640018 Generic Idle Restrictor Screw OEM Part

Product Details

Genuine Tecumseh part. See all items in Chipper Shredder Carburetor.

Cross Reference Information

Part Number 640018 replaces AP6737976.

Description

This genuine OEM replacement idle restrictor screw regulates how far the throttle cable can travel in lawn mower or snowblower engine. The throttle cable regulates the engine's speed, fuel consumption, and blade or auger turning speed. If the throttle cable travels out too far, the engine will begin guzzling fuel, causing it to run inefficiently. Therefore, manufacturers install this screw to help regulate the throttle cable. The best time to replace an idle restrictor screw is when making repairs to the throttle. These parts are installed together by the manufacturer so they experience similar aging and wear and tear. These screws can become stripped or corrode into their holes. Should this happen, a mechanic will have to pull the screw out and re-drill the hole. For home repairs, use a socket wrench set and a pair of pliers to access the old idle restrictor screw. This screw is a high-quality replacement part for Toro, Husqvarna, and Tecumseh engines. It was sourced from the original manufacturer and ships without any additional hardware.