1173366 Troy-Bilt Trimmer - Overview

A carburetor basically consists of an open pipe through which the air passes into the inlet manifold of the engine. The pipe is in the form of a Venturi: it narrows in section and then widens again, causing the airflow to increase in speed in the narrowest part. Below the Venturi is a butterfly valve called the throttle valve ' a rotati...Read moreng disc that can be turned end-on to the airflow, so as to hardly restrict the flow at all, or can be rotated so that it (almost) completely blocks the flow of air. This valve controls the flow of air through the carburetor throat and thus the quantity of air/fuel mixture the system will deliver, thereby regulating engine power and speed. The throttle is connected, usually through a cable or a mechanical linkage of rods and joints. Fuel is introduced into the air stream through small holes at the narrowest part of the Venturi and at other places where pressure will be lowered when not running on full throttle.

This is an authentic Craftsman replacement part that has been sourced from the original manufacturer to be used with trimmers and blowers. The gasket is used to seal the connection between the carburetor and the air cleaner assembly. It is recommended to replace gaskets when servicing the motor to ensure proper seals when the parts are reassembled. This item is available as an individual replacement part.

This is an impeller assembly kit designed for use with various models of leaf blower and comes with all the hardware necessary to replace it, including the impeller, the securing nut and 1 washer for each side of the impeller. If you notice the blowing power of the leaf blower is reduced or that there is any physical damage to the impelle...Read morer like bent or cracked blades, the impeller needs to be replaced immediately. When replacing the impeller, you will need a screwdriver or wrench to remove the impeller cover, and you should ensure you use proper safety equipment like gloves.

This is a manufacturer approved O-Ring designed for lawn and garden equipment. This is the O-Ring that provides an Air Tight seal between Carburetor and Cylinder Head. If doing maintenance on carburetor it is recommended to replace the O-Ring instead of re-using the old one. Over time rings and seals tend to dry out and would no longer provide proper seal compromising engines performance.

This is a foam air filter designed for use within various models of outdoor power equipment like trimmers and leaf blowers. This foam filter measures approximately 3-inches in length and fits within the air filter assembly to prevent contaminants from entering your equipment. Air filters commonly build up with dust and dirt over time, and...Read more will need to be replaced every so often, and regularly inspecting them for build ups can reduce the amount of extra maintenance that is required. If your air filter is clogged, it will lead to worse performance from your equipment, like difficulty starting or not starting at all, and can even damage the carburetor and engine. To replace the air filter, remove the cover for the air filter housing, and remove and dispose of the old filter. Rub a small amount of oil into the new filter before installing it and securing the air filter cover.

This is a genuine OEM sourced part which is specially made for use with Craftsman handheld lawn and garden equipment. Its purpose is to deliver electric current from the ignition system to the combustion chamber. It will ignite the air fuel mixture by the spark. Unfortunately, over time a spark plug can wear out or it may get damaged even...Read moretually requiring a replacement to ensure peak performance. Keep in mind this high-quality spark plug is made of durable materials and is sold individually. Please make sure to refer to the owners manual of your model for the correct location and application of this component.

This is an OEM insulator assembly that is used to protect the carburetor from engine heat and features various seals and hardware made of plastic, steel and rubber. It fits in between the carburetor and cylinder to prevent excessive heat from affecting the performance and operation of the carburetor. It is recommended that you use protect...Read moreive gloves, a screwdriver, and other tools for the replacement process, so check your model for what tools you will need for installation.