Starter carburetor jet type PHBN/PHVA/PHVB 50 Dellorto

Dellorto starter jet. 14770

Type with 4 + 2 holes. There are variations in the PHVA / PHVB / PHBN choke jet, please study the images of each jet to choose the correct one.

It is fitted on carburettors:

• PHBN
• PHVA
• PHVB

The choke starter jet is mainly responsible for the amount of fuel supplied during the start-up of your motorcycle.
If it is too low, the engine does not respond well to the throttle during the cold start phase; if it is too high, faulty spark plugs can quickly result from an overly rich mixture, and the engine runs very unevenly.