{"product_id":"69mm-big-bore-cylinder-kit-gy6-49cc-50cc-moped-scooter-engine","title":"69mm Big Bore Cylinder Kit GY6 49cc\/50cc Moped Scooter Engine","description":"\u003cp\u003e\u003cstrong\u003e69mm Big Bore Cylinder Kit\u003c\/strong\u003e (MPN: \u003cstrong\u003eGY6-69MM-CBK\u003c\/strong\u003e) for GY6 49cc\/50cc moped scooter engines. Precision-engineered upgrade delivering increased displacement, higher RPM capability, and enhanced power output. Features reticulated surface design for superior sealing, improved oil retention, and reduced wear. Engineered for reliable heat dissipation and fuel efficiency with straightforward installation on 139QMB engine platforms.\u003c\/p\u003e\n\n\u003ch2 style=\"font-family: Arial, sans-serif; color: #0056b3; border-bottom: 1px solid #ccc; padding-bottom: 5px; margin-top: 20px;\"\u003eKey Features\u003c\/h2\u003e\n\n\u003cul\u003e\n\u003cli\u003eIncreased bore diameter for higher displacement and power gains\u003c\/li\u003e\n\u003cli\u003eReticulated surface process ensures excellent sealing and contact integrity\u003c\/li\u003e\n\u003cli\u003eEnhanced oil storage and lubrication reduces component wear\u003c\/li\u003e\n\u003cli\u003eOptimized heat dissipation for sustained performance\u003c\/li\u003e\n\u003cli\u003eDurable, wear-resistant construction\u003c\/li\u003e\n\u003cli\u003eDirect bolt-on installation, no modifications required\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2 style=\"font-family: Arial, sans-serif; color: #0056b3; border-bottom: 1px solid #ccc; padding-bottom: 5px; margin-top: 20px;\"\u003eCompatible Models \u0026amp; Equipment Applications\u003c\/h2\u003e\n\n\u003ch3\u003eGY6 Platform Engines\u003c\/h3\u003e\n\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eGY6 49cc\u003c\/strong\u003e moped and scooter engines\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGY6 50cc\u003c\/strong\u003e moped and scooter engines\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e139QMB\u003c\/strong\u003e engine variants\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2 style=\"font-family: Arial, sans-serif; color: #0056b3; border-bottom: 1px solid #ccc; padding-bottom: 5px; margin-top: 20px;\"\u003eImportant Notes\u003c\/h2\u003e\n\n\u003cp\u003eThis big bore cylinder kit is designed as a direct replacement for stock cylinders on GY6-based 49cc and 50cc engines. Installation requires basic mechanical knowledge. Ensure proper gasket sealing and torque specifications are followed during assembly. Performance gains depend on complementary tuning modifications and proper engine maintenance.\u003c\/p\u003e","brand":"Buymachineryparts","offers":[{"title":"Default Title","offer_id":49482841948419,"sku":"J011602000119790","price":88.88,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0628\/7831\/8851\/files\/69mm-big-bore-cylinder-kit-for-gy6-49cc-50cc-139qmb-moped-scooter-engine_3.jpg?v=1787107425","url":"https:\/\/www.buymachineryparts.com\/products\/69mm-big-bore-cylinder-kit-gy6-49cc-50cc-moped-scooter-engine","provider":"Buymachineryparts","version":"1.0","type":"link"}