O.S. Mixture Control Valve #61B 91HZTower Stock# OSMG6756 • Manufacturer Stock# 29085510
Notes from our tech department:
This valve adjusts the low speed (idle) fuel mixture.
Replaces worn mixture control valve assemblies
One Mixture Control Valve Assembly for the O.S. 61B Carburetor
Disassembly of carburetor and installing valve assembly