Tuning carburetor kit 19mm for Simson S50, S51, S53, S70, S83, SR50, SR80. The kit includes a 19mm Naraku tuning carburetor with clamping flange, a carburetor needle set with 10 parts (W3, W4, W5, W7, W8, W9, W10, W11, W12, W25), 10 main jets (M5: 70, 72, 74, 76, 78, 80, 82, 84, 86, 88), 10 secondary jets (30, 32, 34, 36, 38, 40, 42, 45, 48, 50) and an intake rubber. The set is completed by a Schmitt carburetor flange, which facilitates the installation of the Naraku tuning carburetor on Simson mopeds or scooters. Recommended setup for 50cc Simson: main jet 75-85, secondary jet 40-45, carburetor needle W10-W12. The original throttle cable can still be used. Recommended choke: IP23150 in MX style.
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