{"product_id":"universal-carburetor-idle-spring-50cc-qmb139","title":"Universal Carburetor Idle Spring: 50cc QMB139","description":"Universal Parts Carburetor Air Adjustment Spring for 50cc 4-stroke QMB139 engines. Is your scooter stalling at red lights or surging unpredictably? A weak or corroded idle screw spring fails to hold your carburetor’s adjustment under engine vibration, leading to constant tuning headaches. This Universal Parts Air Adjustment Spring provides the precise tension needed to lock in your fuel mixture and restore a smooth, reliable idle. Precision Tension: Engineered to maintain screw position even under high-RPM vibration. Optimal Fit: 10mm length designed specifically for GY6\/QMB139 carburetors. Corrosion Resistant: Zinc-coated finish to prevent binding within the carburetor body. Brand Popular Models Generic GY6 All 50cc 4-Stroke QMB139 Engines Baja SC50, BE50 Kymco Agility 50, People 50 \u003cspan data-path-to-no\u003e\u003c\/span\u003e","brand":"universal parts","offers":[{"title":"Default Title","offer_id":48046049296571,"sku":"151-199","price":1.4,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0719\/1340\/6651\/files\/450143.jpg?v=1783061027","url":"https:\/\/thriftyscooters.com\/products\/universal-carburetor-idle-spring-50cc-qmb139","provider":"Thrifty Scooters","version":"1.0","type":"link"}