Walbro primer bulb. The primer bulb draws additional fuel into the carburetor to make the engine easier to start. If the primer bulb is leaking, replace it.
Fuel filter
NGK Spark Plug (BPMR6A)
Spring
Body-air purge
Lid, drum
Ball bearing assembly for crank shaft
Eyelet, speed feed
Nut 6mm
Clutch drum
Carburetor wyk-352