Complete intake kit for the Fs1 with a custom-made reed valve assembly and a modified 20mm Amal 420 carburetor.
This kit is a bolt-on for your Fs1 and fits behind the intake cover.
The carburetor uses Keihin 99101-393 M5x0.8 main jets from Honda.
Jet size 110 installed.
The custom-made reed basket features Polini reed valves.
No choke, only a float.
Extra reed valves and an extra intake gasket are available under part numbers 19842–19847