Champion Spark Plug (RC12YC). The spark plug ignites the fuel and air mixture in the cylinder to power the engine. If the spark plug is burnt, fouled or damaged the engine may not start or may run rough.
Briggs & Stratton carburetor primer bulb. The primer bulb draws fuel into the carburetor to make the engine easier to start.
Small engine recoil starter assembly. This item includes the pulley and spring. The recoil starter engages the drive cup on the flywheel to start the engine when pulled.
Carburetor needle & seat kit. Comes with installation instructions. The float needle allows fuel to enter the float bowl. If the float needle is stuck closed, the engine will not get fuel and thus will not start.
Briggs & Stratton recoil starter kit. The recoil starter engages the drive cup on the flywheel to start the engine. If the recoil starter is defective, the engine may not start.
Small engine fuel tank assembly with cap. If the small engine leaks fuel, then the tank is likely cracked and will need to be replaced.