Primer bulb. The primer bulb draws fuel into the carburetor to make the engine easier to start.
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.
Homelite compression spring. Pushes bump knob back out after string is released.
Homelite rewind spring (recoil spring) and container. If the rewind spring is broken, the starter rope won't retract.
String trimmer bump knob (or spool retainer) with left-hand threads. Color: red.
Carburetor for two-cycle engine. If the carburetor is clogged, the engine won't get enough fuel. As a result, the engine may not start or may run rough. The carburetor can often be cleaned or rebuilt, but sometimes it may need to be replaced.
String trimmer bump knob (or spool retainer). Color: black. This part is equipped with right-hand threads.
Two-cycle engine intake manifold gasket. If the intake gasket is torn or damaged, the engine may run rough.
Gasket crankcase cover
Ergo grip starter handle
Fuel tank assembly. Includes fuel tank, cap, filter, and hoses. If your fuel tank is cracked or damaged, replace it.
String trimmer gear head assembly
Homelite carburetor gasket. If this gasket is torn or damaged, the engine may run rough. Be sure to clean the surfaces around the carburetor gasket before installing it.