Dellorto Motorcycle carburettor PHM BS1

Carburettor originally fitted on BMW R90S, but can be used on other models.

Four-stroke carburettor with pump for acceleration.

Thread M52 x 1.25 on the air box side, for screwing in a venturi horn for example.

Clamped with a collar, allowing installation on pipes from 45 to 48mm.

Choke mechanism for cable. A lever version can also be fitted.

Vacuum connection for balancing the carbs.

Jetting

• slide 605
• needle jet K4
• atomiser 260
• main jet 155
• idle jet 60
• acceleration jet 38
• choke jet 60
• needle 300
• float 7450.1 - 8.5g

Features:

• weight (g): 1017
• width (mm): 142
• height (mm): 121
• length (mm): 189
• volume (cm³): 3247