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The Tillotson HW-38A is a high-performance, purpose-built racing diaphragm carburetor featuring a 28mm throttle bore and a 24mm venturi. It is specifically designed and homologated for 100cc two-cycle kart racing engines, most notably the Vortex VLR class.
Specifications & Setup
Application: Vortex VLR 100cc / Kart racing
Throttle Bore: 28mm
Venturi Size: 24mm
Series: Tillotson HW (Avenger style)
Maintenance & Service Parts
Rebuild/Repair Kit: Use the RK-8HW kit for complete internal service (diaphragms, gaskets, inlet needle).
Diaphragm/Gasket Only: Use the DG-1HW kit.
