Parts for Tecumseh 965015: Carburetor 640017 (Div71 / 143) Parts

This is a genuine throttle return spring used on select small engines. The throttle return spring is part of the throttle system. It is attached to the throttle cable and the throttle body or carburetor, and is responsible for pushing the throttle closed when the gas is released and opening the throttle when the throttle trigger is engaged. If the spring is faulty, the throttle will not be able to open and close properly. This can affect the machine's ability to operate and even prevent it from operating at all if the throttle remains closed and no power can get through. A replacement should be done as soon as possible to prevent further damage to the engine. This genuine OEM throttle return spring is manufactured by Tecumseh, and compatible with machines from Toro, Husqvarna, MTD, Lawn Boy, and Tecumseh. There are over 150 models that can use this replacement part. It is made of durable metal and sold as an individual part. This throttle return spring is a simple replacement that should only take a few minutes. Be sure to use care when replacing the spring because it can be susceptible to damage under excessive pressure or strain.

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.

The primary function of a carburetor is to mix fuel and air in the right ratio. Fuel enters the carburetor through the fuel inlet fitting and then to the float bowl which delivers fuel to the other circuits. From there, the fuel goes to the needle valve, which is actuated by the float. When there is insufficient fuel, the float will stay down, keeping the valve open. Once the chamber has enough fuel, the float will go up and close the valve. A failed float bowl may leak or have too many dirt particles deposits that impede fuel flow. Luckily, you can easily replace a busted float bowl. This part is a genuine OEM Tecumseh 631867 float bowl replacement. You’ll have the assurance that this replacement is manufactured according to Tecumseh’s highest standards. It is compatible with mowers, tractors, and snowblowers from Toro, Cub Cadet, Lawn-Boy, MTD, and Tecumseh. This part is sold individually.

The float shaft and pin are a genuine replacement for select Tecumseh carburetors on small lawn and garden equipment engines. The float shaft and pin are responsible for maintaining the fuel level within the carburetor. Over time because of repetitive motion, the float pin and shaft can break or become damaged, which will stop the carburetor from functioning properly. If the carburetor cannot function, the engine will not be able to perform. If left unattended, the engine and carburetor could fail completely or bigger issues could occur. Replacing the float is essential to getting the equipment back in order. This genuine float shaft and pin is designed for use on machines from Tecumseh, Poulan, Husqvarna, Lawn Boy, Cub Cadet, MTD, and Craftsman, and is compatible with a number of models. The fuel system should be drained and the engine should be cool before any engine repairs are started. Always wear gloves for hand protection. This float shaft and pin are made of durable materials and sold as a unit. No additional hardware or parts are included.

The spring clip is a standard part found on many small engines used on outdoor power equipment. This clip is used in the carburetor, where its job is to interact with the carburetor float. This helps engage the inlet needle to allow fuel to flow into the assembly. If this spring clip breaks or becomes detached, the float and inlet needle will not function accordingly. This will affect the fuel and air mixture going to the engine, which could cause performance issues. In severe cases, the engine may not operate at all. Replacing the spring clip is the best solution and should be done as soon as possible. This genuine OEM spring clip is manufactured to strict standards by Tecumseh. It can be used in a number of products from the brand, as well as those from Toro, Cub Cadet, MTD, Husqvarna, and Briggs & Stratton. Compatible machines include snow blowers, lawn mowers, generators, pressure washers, and tillers. There are more than 100 models that can use this replacement part. It is made of durable metal and sold as an individual unit. Be sure to work in a well-ventilated area and drain the fuel system whenever performing engine and carburetor repairs.

This is a main nozzle tube replacement for use with a range of different types of outdoor equipment and small engines. Another name for the main nozzle tube is the fuel jet. The fuel will turn into a vapor and then travel through the main nozzle in a vacuum process. This draws the air into the Venturi pipe. The main nozzle tube is made from plastic, and it can eventually start to break down and wear away. When this happens, it will no longer be efficient. Owners might find that the engine is not running smoothly, or that it is difficult to start the engine. Replacing this element of the system could be what is needed. This is a genuine OEM main nozzle tube replacement. It is sold individually and works for various models of lawn mower, snowblower, tiller, pressure washer, generator, log splitter, wood chipper, and other small engines. Compatible brands include MTD, Toro, Cub Cadet, Lawn-Boy, Craftsman, and Briggs & Stratton. Owners should always ensure they are getting the correct replacement for their make and model.

The O-rings for the Main Nozzle Tube are essential to sealing the engine effectively. O-rings are used in many different parts of lawn equipment and can provide many benefits. Mainly, they provide a secure seal between various compartments to prevent leakage of fluids or air that could affect operation. Keeping O-rings and seals in good condition will help extend the life of lawn equipment. Over time and with regular use and exposure to the elements, these rings can become corroded, damaged, or otherwise ineffective or faulty. Always replace O-rings as soon as they fail so that there is no further damage to the engines or equipment. It is advised to purchase multiple O-rings to have backups on hand for emergencies, as well. Wear gloves whenever replacing O-rings on power equipment for safety and a secure grip. This specific OEM part is designed to replace faulty O-rings in engines, snowblowers, lawnmowers, and pressure washers from leading brands. It is compatible with models from Tecumseh, Toro, Briggs & Stratton, Cub Cadet, Husqvarna, and MTD. Be sure to check your user manual or equipment for part numbers and compatibility to guarantee an exact fit.

Here is a replacement welch plug for use with the carburetor on small engines and various pieces of outdoor lawn equipment. It is important for a carburetor to have a tight seal, which will prevent an influx of air and cause issues with the fuel mixture. The welch plug is meant to prevent these issues. Over time, the plug could have lost its seal, it could have become corroded, or cracked, or it could have become lost. This could cause a loss of power or for the engine to run rough. Owners must replace the welch plug as soon as possible to avoid issues with their engine. This welch plug is a genuine OEM replacement part that is sold separately. The plug can be used on many different types of small engines and lawn equipment, such as lawn mowers, snowblowers, lawn tractors, and chippers. Compatible brands include Craftsman, Toro, MTD, Lawn-Boy, Cub Cadet, and Tecumseh.

Carburetors must have tight seals to prevent too much air from getting into the carburetor at one time. If there are issues with a welch plug, it could cause an engine to lose power or to run rough. The plug might have lost its seal, it could have cracked, or it could have become lost. Sometimes, the vibration of the engine is enough to cause a plug to fall out if it is not tightly sealed. A loose fit will cause problems with the flow of fuel. This genuine OEM welch plug is sold individually and can help to seal your carburetor so your engine retains power. The part can be used with a range of lawn tractors, lawnmowers, snowblowers, and small engines. Compatible brands include Tecumseh, Lawn-Boy, Toro, Craftsman, and MTD.

The comprehensive carburetor kit contains all of the parts and components necessary to make almost any repair to a carburetor on the makes and models mentioned. A carburetor is a part that mixes air and fuel within any combustion engine. Without adequate or ideal air to fuel mixtures, the engine may misfire or run poorly. It is not unusual for older or heavily used engines to need carburetor repairs. This is a carburetor kit for lawn tractors, lawnmowers, and small engines made by Tecumseh, Toro, Lawn-Boy, Cub Cadet, and MTD, among others. It ships individually.