O.S. Tappet Screw F40-300Tower Stock# OSMG8988 • Manufacturer Stock# 45061202
Notes from our tech department:
them as valve adjusting screws. This set contains 1 screw and 1 nut, but since
these engines require 2 screws, you may need to purchase 2 sets.
This fits the FS-40, FS-61, FS-70, FS-90, FS120,