Dellorto PHBG 21 BS french This will not function well

This will not function well with stock cylinders or even most 'sport' tier cylinders

2 sets of weights

Could use a bath but these can help you bring your Derbi back to its original appearance

By centralizing the spark and keeping the entire washing chain (intake and exhaust ports) symmetrical with respect to the cylinder and directed along a single axis

check your old fan for a serial number that includes '108'

Dellorto PHBG 21 BS french This will not function wellDellorto PHBG 21 BS. This is a spigot mount carburetor with pull choke. Features the easy to remove screw off top for simple needle changes. PHBG are fully tunable carburetors and are a suitable upgrade to almost any bike. Uses 5mm Dellorto jets.