Is your 50 cc two-stroke scooter hard to start or idling erratically? The Dell'Orto PHBN 17.5 LS puts the fuel supply right: a carburettor with a 17.5 mm bore and a manual cable choke, for Minarelli and Piaggio engines.

Specifications

• Model PHBN 17.5 LS
• 17.5 mm bore
• Cylindrical throttle slide
• Manual cable choke, separate starting circuit
• Idle adjustable with air screw and jet
• Main circuit with tapered needle
• Ø 24 mm manifold (flexible mount), Ø 35 mm air intake

Scooters it fits

• Piaggio Zip / Liberty / NRG / Vespa ET2 / Beverly 50
• Gilera DNA 50 / Runner SP / Stalker / Typhoon
• Beta Ark / RR 50
• Aprilia SR 50 / Sonic / Rally / RS 50 / MX 50 / Area 51 / Scarabeo 50 / Tuono 50
• MBK Booster / Nitro / Stunt / Ovetto / Mach G
• Yamaha Aerox / BW's / Neo's / TZR 50

Before you buy

Check that the engine is a 50 cc two-stroke Minarelli or Piaggio with a manual choke, then compare the bore and connections with the part you are replacing. Check the mixture once it is fitted.

Frequently asked questions

Is the choke automatic?

No, it is manual, cable operated.

What bore does it have?

17.5 mm.