{"product_id":"gasket-set-52-4mm-89cc-big-bore-kit-for-scooters-mopeds","title":"Gasket Set - 52.4mm 89cc Big Bore Kit for Scooters \u0026 Mopeds","description":"\u003ch2\u003eGasket Set for 89cc QMB139 Engines\u003c\/h2\u003e\u003cp\u003eThis set is built for the 52.4mm big bore kit found on 89cc engines. It suits QMB139 (1P39QMB) platforms and is meant to keep a firm seal under full compression. If you are looking for upgrades, you can browse \u003ca href=\"\/collections\/scooter-cylinder-kits\"\u003escooter big bore and cylinder kits\u003c\/a\u003e for the rest of the engine work. The package contains every gasket needed to service or rebuild the cylinder.\u003c\/p\u003e\u003ch3\u003eConstruction and Compatibility\u003c\/h3\u003e\u003cp\u003eThe set includes three gaskets made from high-temperature composite material, and one of them is a metal head gasket ring for extra durability. It serves as a direct replacement when working on the upper end of QMB139 engines, and it is sized specifically for the 52.4mm bore. Check your bore diameter before ordering, since this set will not fit stock 39mm (50cc) or 47mm (72cc\/80cc) cylinders.\u003c\/p\u003e\u003ch3\u003eWhen to Replace Your Gaskets\u003c\/h3\u003e\u003cp\u003eSwap out the gaskets whenever you service or overhaul the cylinder to help the engine run efficiently. Oil leaks or a drop in performance can point to worn gaskets. Checking them regularly can prevent expensive repairs and extend engine life.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBore Size:\u003c\/strong\u003e 52.4mm (89cc displacement)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEngine Platform:\u003c\/strong\u003e QMB139 \/ 1P39QMB (GY6 50cc 4-stroke)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePieces:\u003c\/strong\u003e 3 (head gasket, base gasket, tensioner gasket)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e High-temperature composite + metal head gasket\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM Part Number:\u003c\/strong\u003e NX100.58\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFits:\u003c\/strong\u003e Naraku 52.4mm 89cc big bore kit on QMB139 (1P39QMB) 50cc engines, off-road use\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFitment\u003c\/h3\u003e\u003cp\u003eCompatible with:\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eGeneric \/ Chinese QMB139 (GY50) 50cc, any brand (must be equipped with Naraku 52.4mm BBK)\u003c\/li\u003e\n\u003cli\u003eTao Motor \/ TaoTao ATM50-A1 (Pony 50), Speedy 50, VIP Future Champion (QMB139 platform)\u003c\/li\u003e\n\u003cli\u003eWolf Brand RX-50, Islander 50, Blaze 50 (standard QMB139 architecture)\u003c\/li\u003e\n\u003cli\u003eIce Bear \/ Amigo Rocket, Q6, Rocky, J-50 (50cc short-case or long-case QMB139)\u003c\/li\u003e\n\u003cli\u003eHonda Metropolitan (2013+, only models converted to QMB139-style BBK)\u003c\/li\u003e\n\u003cli\u003eKymco Agility 50, People 50 (52.4mm engine conversions only)\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eHow to choose:\u003c\/strong\u003e Only use this set with a 52.4mm bore cylinder. It will not fit stock 39mm (50cc) or 47mm (72cc\/80cc) cylinders.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eShop more:\u003c\/strong\u003e \u003ca href=\"\/collections\/scooter-cylinder-kits\"\u003eScooter Big Bore and Cylinder Kits\u003c\/a\u003e · \u003ca href=\"\/collections\/scooter-gaskets-seals\"\u003eScooter Gaskets and Seals\u003c\/a\u003e · \u003ca href=\"\/collections\/scooter-parts\"\u003eScooter Parts\u003c\/a\u003e\u003c\/p\u003e","brand":"Trend Times Toy Stores","offers":[{"title":"Default Title","offer_id":51134442242105,"sku":"TT-15686","price":16.98,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0665\/3358\/9049\/files\/gasket-set-52-4mm-89cc-big-bore-kit-1.jpg?v=1794343979","url":"https:\/\/www.trendtimes.com\/products\/gasket-set-52-4mm-89cc-big-bore-kit-for-scooters-mopeds","provider":"Trend Times Toy Stores","version":"1.0","type":"link"}