Dell'Orto PHVA 17.5 TS carburettor with automatic choke and oil mixer for Piaggio and Minarelli 50 cc 2T engines

The Dell'Orto PHVA 17.5 TS carburettor is the complete replacement for 50 cc two-stroke scooters with a Piaggio or Minarelli engine (horizontal and vertical): 17.5 mm bore, cylindrical throttle slide, automatic choke and a connection for the oil mixer.

It is the right choice when the original carburettor is worn or dirty and the scooter starts badly, idles unevenly or hesitates when accelerating, and also after fitting a different exhaust and air filter.

Technical features

• Dell'Orto PHVA 17.5 TS
• 17.5 mm bore
• Cylindrical throttle slide
• Automatic choke with independent starting circuit
• For 2-stroke engines, with oil mixer connection
• Idle system with jet and air adjusting screw
• Main system with tapered needle and mechanical mixture adjustment
• 24 mm manifold connection with flexible mounting, 35 mm air intake

Which scooters it fits

It suits 50 cc two-stroke scooters with a Minarelli or Piaggio engine, including:

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

Check your scooter's model and engine type: the list follows the models this carburettor is used on.

When to replace the carburettor

The carburettor should be replaced or overhauled when the scooter is hard to start from cold, idles unevenly, uses too much fuel or loses power and cleaning the jets does not help. After replacing it, check the fuel mixture and jets, especially if the exhaust and filter have also been changed.

Before you buy

Compare the bore (17.5 mm), the manifold connection (24 mm) and the air intake (35 mm) with the fitted carburettor and check that your engine is a 50 cc two-stroke Piaggio or Minarelli with an oil mixer.

Frequently asked questions

Which carburettor model is it?

It is a Dell'Orto PHVA 17.5 TS with a 17.5 mm bore.

Does it have an automatic choke?

Yes, it has an automatic choke (TS version).

Which engines does it fit?

50 cc two-stroke Piaggio and Minarelli engines, with oil mixer connection.

What are the connection sizes?

24 mm manifold connection and 35 mm air intake.