Dellorto PHBG 19DS Racing carburettors Black Edition. This carburettor deserves to be called Racing. Many features are tailored to the needs of ambitious tuners. Screw-on metal carburettor cap - manual cable choke - metal float bowl with screw beneath the jet seat allowing for quick access to the main jet without dismantling. Generally 19mm carbs are suitable for all 70cc tuning applications. Easy to tune cab in the usual Dellorto quality. The vacuum port and oil terminal also allow the use of separate lubrication with oil pump. Connection engine: 25mm connection air filter side: 32mm (without an adapter) 38 mm (with an adapter) main jet: M5 # 75 idle jet: M5 # 45 choke jet: M5 # 60 Floats: 9450.1 carburettor slider 30 (metal version) needle choice: W9 Jet: M6 262AN