Mikuni Performance Carburetor – Air Jet  Size 250 40PHH. Item #24. Genuine Mikuni #B42/56-250 Made in Japan. For Jet Blocks stamped with “8”, #N101.188. Head Diameter 9mm. Head Height ~2.53mm. Overall height 7.57mm. Sold individually. Two Air Jets required per carburetor.

The Mikuni Air Jet is designed to meter the amount of air. A change of the main air jet will affect the flow of fuel mainly at medium and high speed driving, resulting in change of output power.

For Jet Blocks stamped with “OA” or “OB”, use 44PHH Air Jets #B42/55-(Size)

Note: Some Mikuni / Solex OEM 40PHH Carburetor Applications use Mikuni Performance 44PHH carburetor parts. Please compare images for confirmation of parts needed prior to ordering.

Also fits: Mikuni / Solex – S Type 40PHH. Type 3 40PHH, Type 4 40PHH – Using Jet Blocks stamped with “8”, #N101.188.

Sorry, Jets are not returnable.

Authorized Mikuni Distributor