Combine it with
Dell'Orto PHBL 26mm carburettor. This carburettor is the most common carburettor on trial bikes and has been used successfully for decades. It offers excellent performance throughout the entire rev range. High idle speed of 120 and low idle speed of 35.
Adjustable air tuning system that allows you to carburet the bike and easily adjust the richness of the mixture. Valid for Keihin carburetors