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.
Small engine primer bulb. The primer bulb draws additional fuel into the carburetor to help start the engine.
Air filter. If the air filter is clogged or dirty, the engine may not start or may run rough.
Fuel tank vent (also called a check valve). The fuel tank vent allows air to re-enter the fuel tank. If the vent is clogged, the engine may stall.
Dual-layer air filter. This part has been updated; it now features a dual-layer design.
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.
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.
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.
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.
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