Universal Parts Carburetor Air Idle Screw $2.99 Quantity discounts available QuantityPrice SKU: 151-198 This item is IN STOCKCurrent Stock: 12 Quantity -+ Add to Cart Details Specs Overall Length: 30mm Thread Size: M6x0.50 Supported Models Baja SC50, Boreem (BMS), Kymco, Panterra, QMB139 50cc/49cc , Roketa, SUNL, Tank DetailsSpecsSupported Models Back Universal Parts Carburetor Air Idle Adjustment Screw for 50cc 4-stroke QMB139 engines. Back Overall Length: 30mmThread Size: M6x0.50 Back Baja SC50, Boreem (BMS), Kymco, Panterra, QMB139 50cc/49cc , Roketa, SUNL, Tank