{"product_id":"yamaha-genuine-rx50-ysr50-crankshaft-4u5-11400-00","title":"Yamaha Genuine RX50 \/ YSR50 Crankshaft 4U5-11400-00","description":"\u003cp\u003e\u003cimg\u003e\u003cimg\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0899\/5009\/3636\/files\/download.png?v=1736759431\" alt=\"Yamaha Genuine OEM\" style=\"float: none;\"\u003e\u003c\/p\u003e\n\u003cp dir=\"ltr\" data-path-to-node=\"3\"\u003e\u003cb data-path-to-node=\"3\" data-index-in-node=\"0\"\u003eProduct Description\u003c\/b\u003e\u003c\/p\u003e\n\u003cp dir=\"ltr\" data-path-to-node=\"4\"\u003e\u003cspan\u003eBrand new official Yamaha factory complete crankshaft assembly designed for classic vintage 50cc two-stroke geared motorcycles and minibikes.\u003c\/span\u003e\u003cspan\u003e Precision-forged and dynamically balanced to exact factory metallurgical and rotational tolerances,\u003c\/span\u003e\u003cspan\u003e featuring the robust 3R1-type heavy-duty rod design engineered to eliminate bottom-end vibration,\u003c\/span\u003e\u003cspan\u003e restore primary compression,\u003c\/span\u003e\u003cspan\u003e and handle high-RPM operation for a complete engine overhaul.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp dir=\"ltr\" data-path-to-node=\"5\"\u003e\u003cb data-path-to-node=\"5\" data-index-in-node=\"0\"\u003eVehicle Compatibility\u003c\/b\u003e\u003c\/p\u003e\n\u003cp dir=\"ltr\" data-path-to-node=\"6\"\u003e\u003cspan\u003eEngineered explicitly for \u003c\/span\u003e\u003cb data-path-to-node=\"6\" data-index-in-node=\"26\"\u003eYamaha classic air-cooled two-stroke 50cc geared sport and trail platforms\u003c\/b\u003e\u003cspan\u003e.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp dir=\"ltr\" data-path-to-node=\"7\"\u003e\u003cspan\u003eVerified catalog fitment layout:\u003c\/span\u003e\u003c\/p\u003e\n\u003ctable data-path-to-node=\"8\"\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMake\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003eModel Family\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003eEngine Type \/ Displacement\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003eModel Years\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan data-path-to-node=\"8,1,0,0\"\u003e\u003cb data-path-to-node=\"8,1,0,0\" data-index-in-node=\"0\"\u003eYamaha\u003c\/b\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan data-path-to-node=\"8,1,1,0\"\u003eRX50 \/ RX50CH\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan data-path-to-node=\"8,1,2,0\"\u003e49cc (2-Stroke Air-Cooled Geared Single)\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan data-path-to-node=\"8,1,3,0\"\u003e1980s\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan data-path-to-node=\"8,2,0,0\"\u003e\u003cb data-path-to-node=\"8,2,0,0\" data-index-in-node=\"0\"\u003eYamaha\u003c\/b\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan data-path-to-node=\"8,2,1,0\"\u003eYSR50 \/ YSR 50\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan data-path-to-node=\"8,2,2,0\"\u003e49cc (2-Stroke Air-Cooled Minibike Sport)\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan data-path-to-node=\"8,2,3,0\"\u003e1986–1992\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan data-path-to-node=\"8,3,0,0\"\u003e\u003cb data-path-to-node=\"8,3,0,0\" data-index-in-node=\"0\"\u003eYamaha\u003c\/b\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan data-path-to-node=\"8,3,1,0\"\u003eDT50R \/ DT50MX \/ TZM50 (Variants)\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan data-path-to-node=\"8,3,2,0\"\u003e49cc (2-Stroke Air-Cooled Geared Single)\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan data-path-to-node=\"8,3,3,0\"\u003eVintage Era\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp dir=\"ltr\" data-path-to-node=\"9\"\u003e \u003c\/p\u003e\n\u003cp dir=\"ltr\" data-path-to-node=\"9\"\u003e\u003cb data-path-to-node=\"9\" data-index-in-node=\"0\"\u003eFitment \u0026amp; Technical Details\u003c\/b\u003e\u003c\/p\u003e\n\u003cp dir=\"ltr\" data-path-to-node=\"10\"\u003e\u003cspan\u003eCheck main bearing journals and oil seal mating surfaces for absolute cleanliness prior to installation.\u003c\/span\u003e\u003cspan\u003e Warm the crankcase bearing housings evenly and press the new crankshaft assembly squarely into position without side-loading or hammering directly on the threaded shaft ends.\u003c\/span\u003e\u003ci data-path-to-node=\"10\" data-index-in-node=\"280\"\u003eVerification:\u003c\/i\u003e\u003cspan\u003e Crankshaft spins freely with zero binding,\u003c\/span\u003e\u003cspan\u003e axial play,\u003c\/span\u003e\u003cspan\u003e or radial runout inside the matched crankcase halves.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eImportant:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003ePlease ensure the part number matches your motorbike before purchasing. If you have any questions about the part or its compatibility, feel free to contact us. We’re here to help!\u003c\/p\u003e\n\u003cp\u003eAt\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eDmmotorcycles\u003c\/strong\u003e, we’ve specialized in vintage and vintage sports motorcycles and parts directly from Japan since 1998. We stock a wide selection of rare\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003egenuine\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eand high-quality\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eaftermarket\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eparts and continually update our inventory to meet growing demand.\u003c\/p\u003e\n\u003cp\u003eLooking for a specific part? Don’t hesitate to ask! We may have it in stock even if it’s not listed online. If not, we’ll do our best to source it for you.\u003c\/p\u003e\n\u003cp\u003eWe’re also happy to provide guidance on installation and offer excellent after-sales support to ensure your satisfaction.\u003c\/p\u003e\n\u003ch3\u003e\u003cstrong\u003eShipping Information\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003eWe ship worldwide, carefully inspecting and securely packing all parts to ensure safe delivery. Your order will be insured and shipped quickly, with the best available shipping option chosen for speed and reliability.\u003c\/p\u003e\n\u003cp\u003ePlease note:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eAll parts are shipped from Cyprus (Europe).\u003c\/li\u003e\n\u003cli\u003eCustomers outside the EU may incur additional import taxes based on the value of the item.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cspan style=\"font-family: Arial; font-size: large;\"\u003e\u003cimg alt=\"\"\u003e\u003c\/span\u003e\u003c\/p\u003e","brand":"Yamaha","offers":[{"title":"Default Title","offer_id":54057307406660,"sku":"EB-295283933742","price":385.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0899\/5009\/3636\/files\/57_4e790ebd-e350-44de-b250-17ffaef75e45.jpg?v=1736576454","url":"https:\/\/www.dm-motorcycles.com\/products\/yamaha-genuine-rx50-ysr50-crankshaft-4u5-11400-00","provider":"www.dm-motorcycles.com","version":"1.0","type":"link"}