Dell’Orto carburetors

Atomizer specifications for Dellorto PHBH carburetors

Detailed technical information regarding Dell’Orto motorcycle carburetors, how to tune, parts diagrams, slide specifications, needle specifications, jet specifications, and atomizer specifications.


This information was gleaned from Beedspeed.

Photo courtesy of Beedspeed.

Code NumberTypeX value measured in hundredths of a millimeter.
9695 x 28AV264-266-268-270
9423 x 28AS260-268-270
7790 x 28P260-268-270
7972 x 28T260-262-264-266-268-270
9979 x 28BC262