The carburetor adapter with ring connects the carburetor of the STIHL chainsaw to the cylinder intake port and keeps the intake tract airtight. Manufacturer: EMAST.
Rubber and plastic crack and lose their shape over time. Signs: air leaks, unstable idle, fluctuating revs. When replacing, check the clamp and the mating surfaces.
When replacing, clean the seat of dirt, oil and sawdust and inspect the neighboring parts: a worn unit often drags the others with it.
