hmm .. evo sta pise na dellortovoj stranici
A note on carburettor model designations.
PHBH 28 B SPHBH - Main body type, each body comes in a range of bores. - The effective diameter bore of the carburettor in mm.
B - Generally rubber sleeve "elastic" type fitting.
A - Generally clamp type fitting. Other letters have no specific meaning - they have certain original applications - if you are unsure which mosel you need, contact us before buying.
S - "Sinistra" - "left" in Italian - Left hand idle mixture and idle speed screws.
D - "Destra" - "right" in Italian Right hand idle mixture and idle speed screws.
cini mi se da je phbg- rucni cok .. a phva- el cok .. ako grijesim neka me neko ispravi
valjda sam makar malo pomogao