MT780 (41BD780G977) MTD Trimmer - Overview

This manufacturer-certified primer and hose assembly includes the primer bulb, the primer bulb housing, and the fuel line. Any or all of the clear plastic parts in this assembly may experience wear and tear over time that cause fuel to leak due to cracking or blockages. If they are not functioning, these parts will fail in their functio...Read moren of supplying fuel from the tank to the carburetor. This is an easy repair, which can be made by identifying the location of the parts, between the fuel tank and the carburetor, and reinstalling them with no special tools required. When installing, make sure the fuel lines are tight to prevent leaks and fire hazards.

The OEM fuel return line, or fuel return tube, is a clear plastic line that returns fuel from the primer bulb back into the fuel tank of your engine. You will know your fuel return line is in need of replacement if cracks or leaks have begun appearing, and fuel is leaking from your carburetor. This part is sold individually, and you wil...Read morel know if it is right for your engine by checking your model number or owners manual. One end of the line will attach to the primer bulb, and the other to the fuel tank; make sure all fuel lines are tight when completing this repair, to prevent leaks and fire hazard risks. Most customers rated this repair as easy.

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 plastic throttle trigger measures 2.5-inches in length and controls the power, speed, and intensity of the motor for your lawn equipment through the throttle cable and carburetor it is attached to. Sold as an individual part without any securing hardware, this trigger, although made of durable plastic, is a high-use part that will ne...Read moreed to be replaced more often than other parts. Check the user manual for your model for exact placement and installation location of this trigger.

This Switch is a black, plastic on/off switch for a trimmer. Installation of this manufacturer-certified switch is rated as "Easy" and requires a screwdriver, wrench set and socket set. Refer to your make, model, and diagrams to ensure this switch is correct for you.

This Spark Plug is inserted into the cylinder head and is rated as "Easy" to install. The spark plug ignites the air fuel mixture inside the combustion chamber. If the part doesn't work, or is missing then the engine will not start and the spark plug must be replaced. This part should also be replaced annually as a part of proper engine maintenance. Tip: Gap to manufacturer's specs before installing.

The manufacturer-certified Air Cleaner Filter is a grey foam filter used to prevent debris and dirt from entering the carburetor and engine, causing damage. Installation is rated as "Easy". This filter may become clogged and cause the engine to run rough due the restricted air flow, at which time the filter should be replaced. This filter is placed inside the air cleaner housing.

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.

It is an authentic manufacturer-supplied part that is specially made for use with lawn and garden equipment. This is an identical replacement for a missing or a faulty clutch spring that was installed on a new unit. Please make sure to refer to the appropriate diagrams of your model for the correct location and application of this hardwar...Read moree. Keep in mind this high-quality clutch spring is made of durable metal and is sold in a pack of two.

This is a Genuine OEM replacement part designed for Gas String Trimmers. The kit includes the fuel filter, supply fuel line, return line, and line connector. The purpose of these Fuel Lines is to to provide fuel into the carburetor. The filter is situated inside the fuel tank, with the fuel line extending through an existing hole in the f...Read moreuel tank. It is then connected to the primer bulb which will purge the air out of the carburetor. By pressing the primmer bulb it will fill the carburetor with fuel, once it is full the excess fuel will be forced back into the tank through the fuel return line. Over time the fuel lines will deteriorate and become brittle so they would need to be replaced.

This OEM Recoil Pulley Assembly includes Rope, Pulley and Inner Spring, and is a plastic kit which is rated "Medium" difficulty to install. Installation requires a screwdriver, pliers, socket set, and wrench set. This kit is used to house the starter rope. If damaged you might not be able to pull on the rope, it could become jammed. If broken, it should be replaced.

This is a genuine OEM replacement part. it is sold individually. The Bump Head Knob Assembly is the part of the trimmer that you bump on the ground to advance the cutting line from the spool. Because of the abuse this part gets, it is advisable to order an extra one so you have on on hand. LEFT HAND THREADED