Universal Parts Diaphragm Spring for QMB139 Carburetor $2.49 Quantity discounts available QuantityPrice SKU: 151-179 This item is IN STOCKCurrent Stock: 491 Quantity -+ Add to Cart Details Supported Models Baja SC50, Kymco, QMB139 50cc/49cc , Roketa, Schwinn, SUNL, Tank, Various unlisted makes/models, Vento DetailsSupported Models Back Universal Parts Carburetor Spring for 50cc 4-stroke QMB139 engines. Back Baja SC50, Kymco, QMB139 50cc/49cc , Roketa, Schwinn, SUNL, Tank, Various unlisted makes/models, Vento