Set Screw, Venturi, Small – Mikuni 40PHH/44PHH Performance Carburetor. 20mm Length #N107.174-R – Item #48. Replacement Alternative. Stainless Steel – Allen Head. Mikuni has discontinued the #N107.174. Sold individually. Two required per carburetor.

For the Mikuni 40PHH Outer (Large) Venturi Set Screw Item #47 16mm Length, Please see #N107.173-R.