R4128 PHBH 28RD

Original equipment on Aprilia 1991 Futura S.P. 125cc, can be jetted for RS125 if specified when ordering.

2 stroke carburettor.

Fitted with oil feed & float bowl overflow.

M42 x 1.25mm intake thread, fitted with wide trumpet/intake adpator.

36mm Rubber sleeve type stub fitting.

Cable type choke fitted, lever type can be fitted if requested.

Standard Jetting

• 50 Slide
• X7 Needle
• 268BN Atomiser
• 118 Main jet
• 60 Idle jet
• 70 Choke jet
• 250 Float valve
• 9010.1 Float - 9.5 grams