{"product_id":"boring-tool-case-gy6-150cc-ncy-brand","title":"NCY Engine Case Boring Tool - GY6 125\/150cc","description":"\u003ch2\u003eEngine Builder Precision: NCY GY6 Case Boring Tool\u003c\/h2\u003e\u003cp\u003ePush the limits of your GY6 engine with the \u003cstrong\u003eNCY Case Boring Tool\u003c\/strong\u003e. When upgrading to extreme big-bore kits (such as 61mm or 63mm cylinders), the stock engine case diameter is often too small to accept the larger cylinder skirt. This professional-grade tool allows you to precisely machine the engine case to the perfect clearance, ensuring a seamless fit for high-displacement performance upgrades.\u003c\/p\u003e\u003ch3\u003eTechnical Performance Features\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eProfessional Machining at Home:\u003c\/strong\u003e Designed to eliminate the need for expensive machine shop services, allowing builders to bore their own cases with precision and consistency.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAdjustable Cutting Diameter:\u003c\/strong\u003e Engineered specifically for GY6 125cc and 150cc (QMI152\/QMJ157) engine blocks to facilitate 170cc, 180cc, and larger conversions.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGuided Stability:\u003c\/strong\u003e The tool's pilot design ensures the bore stays perfectly centered with the crankshaft axis, preventing sleeve misalignment and potential engine failure.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHardened Steel Cutting Bit:\u003c\/strong\u003e Features a durable, high-speed steel cutter capable of shaving through cast aluminum cases with minimal heat buildup.\u003c\/li\u003e\n\u003c\/ul\u003e\u003chr\u003e\u003ch3\u003eComprehensive Fitment Guide\u003c\/h3\u003e\u003cp\u003eThis specialized tool is compatible with a wide range of \u003cstrong\u003eGY6-based\u003c\/strong\u003e and \u003cstrong\u003eTaiwanese-manufactured\u003c\/strong\u003e engines, including:\u003c\/p\u003e\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eBrand \/ Series\u003c\/th\u003e\n\u003cth\u003ePopular Models\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eGY6 Engines\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eAll 125cc\/150cc QMI152 \u0026amp; QMJ157 Engines\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eGenuine Scooter Co.\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eBuddy 125, Buddy 150, Blur 150\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003cul\u003e\u003cli\u003e\u003cstrong\u003eNot compatible with crankcases with 57mm stud spacing\u003c\/strong\u003e\u003c\/li\u003e\u003c\/ul\u003e\u003chr\u003e\u003ch2\u003eSpecifications\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eEngine Type:\u003c\/strong\u003e GY6 125cc - 150cc (4-Stroke)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTool Type:\u003c\/strong\u003e Manual Case Boring \/ Machining\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer:\u003c\/strong\u003e NCY (Made in Taiwan)\u003c\/li\u003e\n\u003c\/ul\u003e\u003chr\u003e\u003cblockquote\u003e\n\u003cstrong\u003eMechanic's Note:\u003c\/strong\u003e Case boring is a critical process. For the best results, AZScooterParts recommends using a \u003cstrong\u003edrill press\u003c\/strong\u003e or a high-torque hand drill equipped with a \u003cstrong\u003eclutch\u003c\/strong\u003e to prevent binding. Always clear aluminum shavings thoroughly from the crankcase before reassembly to prevent bearing damage.\u003c\/blockquote\u003e\u003cp\u003e\u003cstrong\u003ePart Number:\u003c\/strong\u003e 1400-1015 \u003cbr\u003e\u003cstrong\u003eCertification:\u003c\/strong\u003e ISO 9001 Certified\u003c\/p\u003e\u003cp\u003eThe NCY Case Boring Tool is a must for most large bore projects on GY6 cylinders (up to 67mm) and other model cylinders (up to 72mm). \u003c\/p\u003e\u003cul\u003e\u003cli\u003eNot compatible with a 57mm stud spacing crankcase\u003c\/li\u003e\u003c\/ul\u003e\u003ch2\u003eModel Fitment\u003c\/h2\u003e\u003ctable\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eRS 100\u003c\/td\u003e\n\u003ctd\u003eSUPER-4 100\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eJOG 100\u003c\/td\u003e\n\u003ctd\u003eGTR 125\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eGTR AERO 125\u003c\/td\u003e\n\u003ctd\u003eRS ZERO 100\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRS Z-100\u003c\/td\u003e\n\u003ctd\u003eBWS 125\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBWS 125 X\u003c\/td\u003e\n\u003ctd\u003eNEW CYGNUS 125\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCYGNUS 125\u003c\/td\u003e\n\u003ctd\u003eCUXI 100\u003c\/td\u003e\u0026lt;\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e","brand":"NCY","offers":[{"title":"Default Title","offer_id":67964580364609,"sku":"1400-1001","price":188.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1011\/7785\/2225\/files\/az-p012-7210-0-1400-1001_1d6b31cf-7e8d-460f-95bb-358ff33f9b49.jpg?v=1792557870","url":"https:\/\/azscooterparts.com\/products\/boring-tool-case-gy6-150cc-ncy-brand","provider":"AZScooterParts","version":"1.0","type":"link"}