SCHMITT intake manifold or carburetor flange / adapter enables the installation of modern PHBL carburetors with 28mm clamping flange on Simson mopeds with M531, M541 or M571 engines such as S50, S51, S53, S70, SR50, SR80, KR50/1, KR50/2 Schwalbe, Sperber, Habicht or Star. Manufactured in Germany on modern 5-axis CNC milling machines, this adapter is characterized by a perfect surface finish. The precisely fitting, barrier-free connection between carburettor and intake manifold optimizes the throttle change. The milled Venturi cone accelerates the fuel-air mixture, resulting in increased performance. The optimized geometry of the flange ensures a linear transition to the air filter heart box. The scope of delivery includes two DIN 6912 hexagon socket screws and a matching silicone O-ring, which can be replaced by a standard flange gasket. Outer diameter: 28mm, venturi passage: 24mm.
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