Its no secret that the Dellorto PHBG carb range is a favorite of ours. Particularly the Malossi PHBG kits, which come ready to fit particular bikes, with fitment kit, manual choke kit and airbox stuffers to increase air flow into the airbox.
There are however a couple of draw backs of the PHBG. The PHBG is only available with a manual choke, meaning you physically have to pull a choke lever to start it and pop it back down after a couple minutes of running. Another is that the PHBG (being a race orientated carb) needs to be finely tuned to run right, you can’t just bolt it on and expect it to run right. In particular the needle in the PHBG generally needs fine tuning on the needle and pilot jet – On top of the obvious main jet tuning that every single carb requires.
However, there is now another option – The Malossi Dellorto PHVB 22mm Carb Kit.
The couple of obvious immediate benefits are:
- Auto Choke. The PHVB uses the factory auto choke in the factory fitted PHVA found in all Aprilia / Piaggio 50cc 2T models. We sell this choke as well seperately, as well as a manual choke option (point being you get the choice of auto or manual choke).
- Jets. The PHVB uses the same 6mm found in the factory fitted PHVA found in all Aprilia / Piaggio 50cc 2T models. If you’ve already fitted a performance exhaust and/or 70cc kit you’ll likely have spare jets left over, and wont need to purchase more.
- Designed for Street Use. The PHVB is essentially a scaled up version of the PHVA. comparing a PHVB to a PHVA they appear almost identical, and the internals are almost identical too. There are a few differences, the PHVB also uses a different needle and pilot jet. As this carb is designed around street use, these shouldn’t need to be changed like with the pilot and needle in the PHBG (not in our experience anyway) as this is a more street orientated carb – not as finely tune-able as the PHBG.
For a closer look, we’ve even done a video show through just for you✌️
We like this carb alot, if you’re looking for a hassle free carb tuning upgrade for your Aprilia or Piaggio 50cc 2T – this is it. Please note, as in our ‘Laws of scooter tuning’ article (worth a read if you haven’t already) we don’t recommend upgrading the carb unless you’ve already installed a performance exhaust and 70cc kit.