Fuel filter. If the fuel filter is clogged, it will restrict the flow of fuel to the carburetor. As a result, the engine may not start.
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.
Echo fuel pipe/vent tube
Echo intake manifold gasket.
Fuel tank with mounting spacers
Spark plug wire terminal
Echo two-cycle engine fuel line mounting clip.