PZ19 Carburettor Carb Choke Manual for Quad Bike ATV Pit Bike 50CC 70CC 90CC 110CC This carburettor choke is designed for use with PZ19 carburettors on various small engine vehicles including quad bikes, ATVs, pit bikes, and bikes.It supports engine displacements of 50CC, 70CC, 90CC, and 110CC.The manual choke allows for precise control of the air-fuel mixture during cold starts and warm-up periods, helping to stabilize engine performance.The unit is built to fit standard carburettor configurations and provides in off-road and recreational riding conditions.Installation is straightforward, connecting directly to the existing carburettor system without the need for modifications.This choke component is suitable for routine maintenance or replacement on compatible two-stroke and four-stroke engines.