Air Silencer Assembly P/N 395404
This air silencer assembly is used on 1971 thru 1979 50 models, 1975 55 rope start models, and CS thru CR 55 models.
Before the air silencer assembly can be attached to the carburetor bodies, the carburetor bodies must be modified as follows:
Use a #7 or 5mm (13/64") drill; drill and tap 1/4-20 threads - through 2 holes (A).
Drill out hole (B) to a depth of 16mm (5/8") and tap 1/4-20 threads.
Clock air intake (C) to keep metal chips from entering carburetor.
Individual service parts for this air silencer assembly can be obtained by using parts catalog for CO model 55.