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 genuine OEM glide cap, is also referred to as a fixed line head. It protects the cutting line of your string trimmer and prevents it from coming into contact with sidewalks or curbs. Housing the cutting head assembly, it guides and helps the trimmer smoothly glide along the edges without causing damage to the line or the machine. The...Read more glide cap is typically found at the bottom end of the trimmer head, where the cutting line extends. The cap is made out of plastic and wears out over time, especially when it rubs against the ground. You may also notice that the string feeds outside of the head uncontrollably. To remove the glide cap, simply depress its locking tabs on each side and pull it away from the cutting head. Install the new glide cap by aligning it with the correct notches on the trimmer, pushing it into place, and using a screwdriver to secure the tabs. Please bear in mind that the glide cap is sold separately from the rest of the cutting head assembly.
Fuel tanks are responsible for storing and supplying fuel, like gasoline, for an engine. This fuel tank assembly is designed for and compatible with various models of trimmers and includes the plastic fuel tank and fuel cap, securing screws, and 2 fuel lines. To best maintain your fuel tank, make sure to inspect the fuel filter regularly ...Read morefor any clogs that could affect equipment performance, and replace it when necessary. Over time and through aging, fuel tanks themselves can wear down and crack, or get severely clogged, leading to issues like contamination rendering the tank unsafe to use, and in need of replacement. You must drain the fuel from the tank before you replace it, and you will need a screwdriver or wrench to remove any panels and securing screws containing the tank.
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 clutch assembly is a genuine OEM replacement kit for outdoor lawn equipment. The kit includes the clutch drum, clutch, clutch washer, and screw. The clutch assembly transfers power from the engine to the cutting attachment which allows you to operate the equipment. Over time, the clutch assembly may malfunction due to normal wear and...Read more tear or accidental damage. If the small clutch assembly fails, the engine will likely stall, and the cutting attachment will not be able to engage. To remove the clutch assembly, first bind the piston to prevent it from rotating. You can do this by removing the spark plug and inserting a length of rope into the cylinder with a few inches remaining outside. Remove the clutch cover and use a clutch removal tool to remove the nut that secures the assembly. Pull the old assembly from the crankshaft and position the new assembly in its place, ensuring it is securely fitted.
This fuel tank cap fits on top of the fuel tank in your lawn equipment. It prevents gasoline from spilling out and keeps moisture and dirt from entering the tank. If the cap is damaged, it will be visibly broken and may not fit snugly on your fuel tank. This can allow debris to enter the fuel tank, which can cause engine problems. Thus, i...Read moret is important to replace a damaged cap immediately. To remove the cap from your machine, start by turning your machine off and letting it cool down. Then, twist the cap counterclockwise to loosen it before lifting the cap straight up. Please note that this OEM-certified replacement part is sold separately.
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 genuine anti-rotation screw from the Ryobi manufacturer. The metal screw is compatible with many lawn and garden trimmers. This item works to help secure the clutch cover assembly. This part is sold individually. A screwdriver is needed in making the repair.
Enjoy trimmer performance at its peak with this Gearbox for Craftsman line trimmers. Part of maintaining a perfectly manicured lawn or garden, this essential component hosts the gears that drive the spool for precision cutting. do not let a malfunctioning gearbox hinder your landscaping work, get your trimmer back up to speed with this qu...Read moreality Craftsman replacement. Despite its heavy-duty task, replacing it is simple but always take caution. For your safety, we suggest wearing work gloves during installation. Trust in Craftsman's commitment to providing reliable, high-quality parts for your outdoor power equipment.
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.
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string trimmer would not start
6 of 8 peoplefound this instruction helpful.
john from SHARPSVILLE, PA
Really Easy
15 - 30 mins
emptied fuel from tank. pulled off the 2 fuel lines from the carburetor.opened the air cleaner door. removed the 2 torque screws that hold on the carburetor. removed the carburetor and air cleaner gasket. installed new carburetor and gasket and put back and tightened the 2 torque screws. closed air cleaner door and pushed the fuel lines o
... Read morento the new carburetor.put some fuel in the tank. started the trimmer. runs great.
The replacement of the carburetor, O-ring, and gasket was simple. I removed 2 screws that held the air cleaner and carburetor in place, swapped them out, and replaced the screws. What took longest was finding a piece of fuel line after breaking one of them. It was brittle after hanging in my garage for several years. I found some in my
... Read more garage and replaced it. It took a few pulls to get it started, but ran very smooth.
Additional information: rather than mixing my fuel, I purchased 40:1 pre-mix fuel to prevent gunking up the carburetor in the future. I use it in my other trimmer and have not had any issues.
Removed 2 screws securing the air cleaner and carburetor to the engine using a T25 Torx driver. then removed the throttle cable from the carb.Then removed the o ring gasket from the engine and replaced with a new one and replaced the carb etc. Primed it and fired it up.Runs just like new.