Mikuni 40PHH Performance Carburetor – 4cyl Jetting Kit #Z70/161. Genuine Mikuni Jets – Made in Japan. This 4 cylinder Jetting kit is for two Mikuni 40 PHH Performance Carburetors. Each carburetor requires two jets and two pump nozzle gaskets per carburetor. Sorry, No Substitutions.

This Mikuni 40PHH Performance Carburetor 4Cyl Jetting kit #Z70/161 includes Four of each of the following:

Main Jet (N100.604) sizes: 135, 145, 155

Air Jet (B42/56) sizes: 160, 200, 230

Pilot Jet (N101.043) sizes: 55, 60

Pump Nozzle (N121.033) size: 45

Pump Nozzle Gaskets: #N102.065 (item # 66*)

Cotter Pins: #Y-1006 (item #57*)

* refers to item number in Mikuni carburetor exploded view diagram.

This Mikuni Jetting kit also includes Mikuni Jet Box #KHS-024 – 18 Slots Adjustable – Size 7 X 4 X 1.5 inches. Plastic – Mikuni Decal.  The original Mikuni Jet Board is discontinued and is replaced with this Jet Box.

The 40PHH B42/56-(Size) Air Jets fit Jet Block #N101.188 stamped with “8” (with two thread sets). See diagram. For Jet Blocks stamped with “OA” or “OB” (with one thread set), use 44PHH Air Jets part number B42/55-(SIZE).

Also fits some Mikuni / Solex PHH Carburetor applications. Note: Some 40PHH OEM Solex Carburetors use Mikuni 44PHH Performance Carburetor parts. Please compare images of items for comparison and confirmation.

Sorry, No Substitutions.

Authorized Mikuni Distributor