{"product_id":"silver-yx140-140cc-kick-start-clutch-motor-only","title":"Silver YX140 140cc Kick Start Clutch (Motor Only)","description":"\u003cp data-start=\"186\" data-end=\"486\" class=\"PDq2pG_selectionAnchorContainer\"\u003eThe YX140 has earned its reputation as one of the most dependable horizontal pit bike engines ever built. Whether you're upgrading a Honda CT70, Z50, ATC70, SL70, XL70, or another Honda mini, the YX140 delivers a huge jump in performance while maintaining the reliability these engines are known for.\u003cspan aria-hidden=\"true\" class=\"PDq2pG_selectionAnchor\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp data-start=\"488\" data-end=\"835\"\u003eWith a 56mm bore, 57mm stroke, manual 4 speed transmission, and oil cooled design, the YX140 produces approximately \u003cstrong data-start=\"604\" data-end=\"623\"\u003e13.5 horsepower\u003c\/strong\u003e—more than double the output of a stock 70cc Honda engine. The broad torque curve makes it easy to ride around town, climb hills, and comfortably cruise at speeds of \u003cstrong data-start=\"789\" data-end=\"810\"\u003e55 MPH\u003c\/strong\u003e with the proper gearing.\u003c\/p\u003e\n\u003cp data-start=\"837\" data-end=\"1185\"\u003eThe engine features a proven wet multi-plate manual clutch, CDI ignition, full wave stator lighting output suitable for full DC lighting (LED ready), and uses a common 17mm output shaft with an included 17-tooth 420 sprocket. Replacement parts, performance upgrades, and service components are widely available, making the YX140 one of the easiest engines to own and maintain.\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eWhy Buy Your YX140 from Bart Moto Co?\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eWhen you purchase your engine from BMC, you're buying from a team that installs, tunes, and builds Honda Mini bikes every day. We don't just sell these engines—we use them ourselves and have years of hands-on experience with Honda Mini engine swaps.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eIf you need guidance on fitment, wiring, gearing, or selecting compatible parts, you're buying from a company that understands these engines and the bikes they go into.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eEvery engine ships from our warehouse and is backed by our \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003eFirst Fire \u0026amp; Function Guarantee\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e, along with knowledgeable technical support when you need it.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3 data-section-id=\"1qpxdnq\" data-start=\"1885\" data-end=\"1910\"\u003eEngine Specifications\u003c\/h3\u003e\n\u003cdiv class=\"TyagGW_tableContainer\"\u003e\n\u003cdiv class=\"group TyagGW_tableWrapper flex flex-col-reverse w-fit\" tabindex=\"-1\"\u003e\n\u003ctable data-start=\"1912\" data-end=\"2499\" class=\"w-fit min-w-(--thread-content-width)\" style=\"width: 99.9801%; height: 293.958px;\"\u003e\n\u003cthead data-start=\"1912\" data-end=\"1939\"\u003e\n\u003ctr data-start=\"1912\" data-end=\"1939\" style=\"height: 19.5972px;\"\u003e\n\u003cth data-start=\"1912\" data-end=\"1928\" data-col-size=\"sm\" class=\"last:pe-10\" style=\"width: 25.656%; height: 19.5972px;\"\u003eSpecification\u003c\/th\u003e\n\u003cth data-start=\"1928\" data-end=\"1939\" data-col-size=\"md\" class=\"last:pe-10\" style=\"width: 71.7403%; height: 19.5972px;\"\u003eDetails\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody data-start=\"1950\" data-end=\"2499\"\u003e\n\u003ctr data-start=\"1950\" data-end=\"2032\" style=\"height: 19.5972px;\"\u003e\n\u003ctd data-start=\"1950\" data-end=\"1964\" data-col-size=\"sm\" style=\"width: 25.656%; height: 19.5972px;\"\u003eEngine Type\u003c\/td\u003e\n\u003ctd data-col-size=\"md\" data-start=\"1964\" data-end=\"2032\" style=\"width: 71.7403%; height: 19.5972px;\"\u003e4 Stroke, Single Cylinder, 2 Valve, Oil Cooled Horizontal Engine\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-start=\"2033\" data-end=\"2057\" style=\"height: 19.5972px;\"\u003e\n\u003ctd data-start=\"2033\" data-end=\"2048\" data-col-size=\"sm\" style=\"width: 25.656%; height: 19.5972px;\"\u003eDisplacement\u003c\/td\u003e\n\u003ctd data-start=\"2048\" data-end=\"2057\" data-col-size=\"md\" style=\"width: 71.7403%; height: 19.5972px;\"\u003e140cc\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-start=\"2058\" data-end=\"2096\" style=\"height: 19.5972px;\"\u003e\n\u003ctd data-start=\"2058\" data-end=\"2071\" data-col-size=\"sm\" style=\"width: 25.656%; height: 19.5972px;\"\u003eHorsepower\u003c\/td\u003e\n\u003ctd data-col-size=\"md\" data-start=\"2071\" data-end=\"2096\" style=\"width: 71.7403%; height: 19.5972px;\"\u003eApproximately 13.5 HP\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-start=\"2097\" data-end=\"2126\" style=\"height: 19.5972px;\"\u003e\n\u003ctd data-start=\"2097\" data-end=\"2117\" data-col-size=\"sm\" style=\"width: 25.656%; height: 19.5972px;\"\u003eCompression Ratio\u003c\/td\u003e\n\u003ctd data-start=\"2117\" data-end=\"2126\" data-col-size=\"md\" style=\"width: 71.7403%; height: 19.5972px;\"\u003e8.8:1\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-start=\"2127\" data-end=\"2158\" style=\"height: 19.5972px;\"\u003e\n\u003ctd data-start=\"2127\" data-end=\"2143\" data-col-size=\"sm\" style=\"width: 25.656%; height: 19.5972px;\"\u003eBore x Stroke\u003c\/td\u003e\n\u003ctd data-col-size=\"md\" data-start=\"2143\" data-end=\"2158\" style=\"width: 71.7403%; height: 19.5972px;\"\u003e56mm x 57mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-start=\"2159\" data-end=\"2201\" style=\"height: 19.5972px;\"\u003e\n\u003ctd data-start=\"2159\" data-end=\"2178\" data-col-size=\"sm\" style=\"width: 25.656%; height: 19.5972px;\"\u003eFuel Requirement\u003c\/td\u003e\n\u003ctd data-col-size=\"md\" data-start=\"2178\" data-end=\"2201\" style=\"width: 71.7403%; height: 19.5972px;\"\u003e91 Octane or Higher\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-start=\"2202\" data-end=\"2245\" style=\"height: 19.5972px;\"\u003e\n\u003ctd data-start=\"2202\" data-end=\"2220\" data-col-size=\"sm\" style=\"width: 25.656%; height: 19.5972px;\"\u003eRecommended Oil\u003c\/td\u003e\n\u003ctd data-col-size=\"md\" data-start=\"2220\" data-end=\"2245\" style=\"width: 71.7403%; height: 19.5972px;\"\u003e10W-40 Motorcycle Oil\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-start=\"2246\" data-end=\"2291\" style=\"height: 19.5972px;\"\u003e\n\u003ctd data-start=\"2246\" data-end=\"2264\" data-col-size=\"sm\" style=\"width: 25.656%; height: 19.5972px;\"\u003eStarting System\u003c\/td\u003e\n\u003ctd data-col-size=\"md\" data-start=\"2264\" data-end=\"2291\" style=\"width: 71.7403%; height: 19.5972px;\"\u003eKick Start (14mm Shaft)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-start=\"2292\" data-end=\"2310\" style=\"height: 19.5972px;\"\u003e\n\u003ctd data-start=\"2292\" data-end=\"2303\" data-col-size=\"sm\" style=\"width: 25.656%; height: 19.5972px;\"\u003eIgnition\u003c\/td\u003e\n\u003ctd data-col-size=\"md\" data-start=\"2303\" data-end=\"2310\" style=\"width: 71.7403%; height: 19.5972px;\"\u003eCDI\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-start=\"2311\" data-end=\"2342\" style=\"height: 19.5972px;\"\u003e\n\u003ctd data-start=\"2311\" data-end=\"2329\" data-col-size=\"sm\" style=\"width: 25.656%; height: 19.5972px;\"\u003eLighting Output\u003c\/td\u003e\n\u003ctd data-col-size=\"md\" data-start=\"2329\" data-end=\"2342\" style=\"width: 71.7403%; height: 19.5972px;\"\u003eYes (Full Wave 12V Output)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-start=\"2343\" data-end=\"2378\" style=\"height: 19.5972px;\"\u003e\n\u003ctd data-start=\"2343\" data-end=\"2352\" data-col-size=\"sm\" style=\"width: 25.656%; height: 19.5972px;\"\u003eClutch\u003c\/td\u003e\n\u003ctd data-start=\"2352\" data-end=\"2378\" data-col-size=\"md\" style=\"width: 71.7403%; height: 19.5972px;\"\u003eManual Wet Multi-Plate\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-start=\"2379\" data-end=\"2412\" style=\"height: 19.5972px;\"\u003e\n\u003ctd data-start=\"2379\" data-end=\"2394\" data-col-size=\"sm\" style=\"width: 25.656%; height: 19.5972px;\"\u003eTransmission\u003c\/td\u003e\n\u003ctd data-start=\"2394\" data-end=\"2412\" data-col-size=\"md\" style=\"width: 71.7403%; height: 19.5972px;\"\u003e4 Speed Manual\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-start=\"2413\" data-end=\"2451\" style=\"height: 19.5972px;\"\u003e\n\u003ctd data-start=\"2413\" data-end=\"2429\" data-col-size=\"sm\" style=\"width: 25.656%; height: 19.5972px;\"\u003eShift Pattern\u003c\/td\u003e\n\u003ctd data-col-size=\"md\" data-start=\"2429\" data-end=\"2451\" style=\"width: 71.7403%; height: 19.5972px;\"\u003eAll Up (N-1-2-3-4)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-start=\"2452\" data-end=\"2499\" style=\"height: 19.5972px;\"\u003e\n\u003ctd data-start=\"2452\" data-end=\"2476\" data-col-size=\"sm\" style=\"width: 25.656%; height: 19.5972px;\"\u003eCountershaft Sprocket\u003c\/td\u003e\n\u003ctd data-col-size=\"md\" data-start=\"2476\" data-end=\"2499\" style=\"width: 71.7403%; height: 19.5972px;\"\u003e17 Tooth, 420 Chain\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003ch3 data-section-id=\"1moi0du\" data-start=\"2501\" data-end=\"2525\"\u003eIncluded with Engine\u003c\/h3\u003e\n\u003cul data-start=\"2527\" data-end=\"2676\"\u003e\n\u003cli data-section-id=\"1hr3bmy\" data-start=\"2527\" data-end=\"2551\"\u003e17T 420 Front Sprocket\u003c\/li\u003e\n\u003cli data-section-id=\"1ejfd4y\" data-start=\"2552\" data-end=\"2568\"\u003eSprocket Cover\u003c\/li\u003e\n\u003cli data-section-id=\"13gfxj2\" data-start=\"2569\" data-end=\"2586\"\u003eIntake Manifold\u003c\/li\u003e\n\u003cli data-section-id=\"1tggi5k\" data-start=\"2587\" data-end=\"2603\"\u003eIntake Gaskets\u003c\/li\u003e\n\u003cli data-section-id=\"qiefvj\" data-start=\"2604\" data-end=\"2627\"\u003eIntake Mounting Bolts\u003c\/li\u003e\n\u003cli data-section-id=\"9dc6b5\" data-start=\"2628\" data-end=\"2643\"\u003eBreather Tube\u003c\/li\u003e\n\u003cli data-section-id=\"z4160w\" data-start=\"2644\" data-end=\"2657\"\u003eShift Lever\u003c\/li\u003e\n\u003cli data-section-id=\"zacgzu\" data-start=\"2658\" data-end=\"2676\"\u003eKick Start Lever\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 data-section-id=\"xx0hya\" data-start=\"2678\" data-end=\"2701\"\u003eCommon Applications\u003c\/h3\u003e\n\u003cul data-start=\"2703\" data-end=\"2869\"\u003e\n\u003cli data-section-id=\"1u7m4c4\" data-start=\"2703\" data-end=\"2715\"\u003eHonda CT70\u003c\/li\u003e\n\u003cli data-section-id=\"j85gpn\" data-start=\"2716\" data-end=\"2727\"\u003eHonda Z50\u003c\/li\u003e\n\u003cli data-section-id=\"1i37n85\" data-start=\"2728\" data-end=\"2741\"\u003eHonda ATC70\u003c\/li\u003e\n\u003cli data-section-id=\"1u7y9a4\" data-start=\"2742\" data-end=\"2754\"\u003eHonda SL70\u003c\/li\u003e\n\u003cli data-section-id=\"1u81ql3\" data-start=\"2755\" data-end=\"2767\"\u003eHonda XL70\u003c\/li\u003e\n\u003cli data-section-id=\"48eir\" data-start=\"2768\" data-end=\"2820\"\u003eHonda CRF50 (with appropriate mounting components)\u003c\/li\u003e\n\u003cli data-section-id=\"1c1kni6\" data-start=\"2821\" data-end=\"2869\"\u003eMany Honda-style horizontal engine conversions\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-start=\"2871\" data-end=\"3094\" data-is-last-node=\"\" data-is-only-node=\"\"\u003eLooking for everything needed to complete your swap? Our \u003cstrong data-start=\"2928\" data-end=\"2953\"\u003eYX140 Full Kit Bundle\u003c\/strong\u003e includes the engine along with the carburetor, wiring harness, throttle, foot pegs, and other recommended components to simplify your build.\u003c\/p\u003e","brand":"Yinxiang","offers":[{"title":"Default Title","offer_id":48822767747316,"sku":"Y140-YXM-KSCL-SLV","price":515.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0632\/6465\/3556\/files\/IMG_1936.jpg?v=1783465748","url":"https:\/\/bartmotoco.com\/products\/silver-yx140-140cc-kick-start-clutch-motor-only","provider":"Bart Moto Co","version":"1.0","type":"link"}