Malossi Carburetor Kit with Dell’Orto PHBG 21 BS – the perfect entry into large carburetor systems

With this Malossi Carburetor Kit, you get a well-thought-out setup for converting to a larger carburetor system – ideal if you want to get more out of your setup without going directly to an extremely complex solution. The centerpiece is the compactly built Dell’Orto PHBG 21 BS: thanks to the design, the kit can often even be used with the original airbox – in combination with a slightly shortened original intake manifold rubber.

The combination of solid Dell’Orto technology and easy tunability makes this carburetor a true all-rounder: whether highly tuned engine or tourer – you benefit from better cylinder filling, more torque, and a setup that can be cleanly tuned to your vehicle. Especially on popular models such as Vespa LX 50, Piaggio Zip 50, or Yamaha Aerox 50, a 21mm PHBG is often a very sensible step if you want to unlock performance reserves.

Why a larger carburetor?

• Significantly better cylinder filling even for engines with slight performance increases
• Powerful increase in torque starting from low RPMs
• A further decent increase in performance is possible through modification of the air filter box
• Dell’Orto standard 5 mm main jets (very good availability)

Technical Details / Specifications

• Kit: Malossi Carburetor Kit
• Carburetor: Dell’Orto PHBG 21 BS
• Main jet standard: Dell’Orto 5 mm
• Installation note: Due to the compact design, often usable with original airbox (with slightly shortened original intake manifold rubber)
• Tuning: Kit has a pre-tuning of main and idle jets

Tuning – important note

Even though the Malossi carburetor kits already come with a pre-tuning (main and idle jets), you should in any case perform a fine-tuning of the individual areas yourself. Every engine runs differently – especially depending on the component mix and setup. This is how you get the maximum out of the Dell’Orto PHBG 21 BS and achieve clean driving behavior.

Compatibility / Vehicles

This carburetor kit fits many vehicles – for example, models such as Vespa LX 50, Piaggio Zip 50, Aprilia SR 50, or Yamaha Aerox 50, but also numerous other scooters and mopeds from the vehicle list (including those from Piaggio/Vespa, Aprilia, Yamaha, Gilera, Peugeot, MBK, Malaguti, Kymco, and more).