Genuine Tillotson throttle shutter screw (P/N 15-C20X) for the HW-series carburetor on the IAME Mini Swift (HW-31A), KA100 (HW-33A) and X30 (HW-27A). Fastens the throttle shutter (butterfly) to the throttle shaft.
Diagram ref: #38 (KA100), #38 (X30), #38 (Mini Swift)
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