Mikuni Carburetor – Spring, Throttle Adjusting Screw. 44PHH Performance Carburetor. Genuine Mikuni #N115.057. Made in Japan. Item #38 in exploded view. Sold individually. Two springs required per carburetor. Overall length ~12.8mm. The 40PHH Spring #4/148 measures ~11.2mm.

Also fits some Mikuni / Solex PHH applications. Fits Type 4 40PHH using Screw #N115.053.

Authorized Mikuni Distributor