Choke sizes:19mm Left or right-hand mixture adjustment.
Always on the right track with a new Dell'Orto carburettor. In contrast to injection systems, the carburettor sucks the required amount of fuel from the float chamber. In order to generate the necessary negative pressure, the intake pipe from the air intake duct via the mixing chamber to the engine connection is usually shaped into a narrowing channel, a venturi.
The PHBG series carburetors are among the most common models in the 50-125cc class. The PHBG carburettors ventilate the majority of all mopeds, mopeds and scooters. They are standard on Minarelli engines.