Ryobi Tiller Parts

Small engine primer bulb. The primer bulb draws additional fuel into the carburetor to help start the engine.

Primer bulb. The primer bulb draws fuel into the carburetor to make the engine easier to start.

Genuine MTD 742-0305A-0637 Articulating Roto-Tiller Tine

Carriage Bolt: 5/16-18 x .750"

Champion spark plug (RCJ6Y). The spark plug ignites the fuel and air mixture in the engine's cylinder to power the engine. If the spark plug is has fouled (if the tip of the spark plug is burnt or damaged), the engine may not start or may run rough.

MTD flange lock-nut, 1/4-20.

Nut-Locking. The manufacturer has changed vendors and the part may vary in character. Some do not have a nylon insert, however the nut is a locking type.

Spring-extension

Small engine primer bulb with hose, large diameter. If the engine does not start the primer bulb may be defective and unable to draw additional fuel in to the carburetor to assist with starting the engine.

Two cycle engine fuel filter and line assembly. If the fuel filter is clogged, it will restrict the flow of fuel to the carburetor. As a result, the engine may not start.

Fuel line. The fuel line allows fuel to travel from the fuel tank to the carburetor and from the primer bulb to the fuel system. If the fuel line is leaking, replace it.

Champion Spark Plug (RDJ7Y). The spark plug ignites the fuel and air mixture in the engine's cylinder to power the engine. If the spark plug is has fouled (if the tip of the spark plug is burnt or damaged), the engine may not start or may run rough.

Fuel filter & fuel line kit. If the fuel filter and fuel line are clogged, they will restrict the flow of fuel to the carburetor. As a result, the engine may not start.

Homelite rewind spring (recoil spring) and container. If the rewind spring is broken, the starter rope won't retract.

On-Off Switch