{"product_id":"tbparts-143cc-big-bore-kit-with-performance-camshaft-kawasaki-z125-pro-2017","title":"TBParts 143cc Big Bore Kit with Performance Camshaft – Kawasaki Z125 Pro (2017+)","description":"\u003ch2\u003eTBParts 143cc Big Bore Kit with Performance Camshaft – Kawasaki Z125 Pro (2017+)\u003c\/h2\u003e\u003cp\u003eThe 143cc big bore kit and TBParts performance camshaft together — the combination that makes the Z125 engine race-ready. The cam opens the valves further so the larger bore can breathe better, delivering more power across the entire RPM range. You will not believe the night-and-day difference over stock.\u003c\/p\u003e\u003cp\u003eThe ceramic-coated all-aluminum cylinder reduces friction, improves sealing, and transfers heat faster than a steel-sleeved alternative. The 10.9:1 high-compression domed piston is pump-gas friendly, and the camshaft is a brand-new grind — not a regrind — with new Taiwan TPI bearings built to OEM specifications. 20% power gains over stock throughout the RPM range, unlike cams that sacrifice bottom-end to gain top-end.\u003c\/p\u003e\u003ch3\u003eWhat’s Included\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eCeramic-coated all-aluminum 60mm cylinder (no steel sleeve)\u003c\/li\u003e\n\u003cli\u003eLightweight high-compression domed 60mm piston with rings, pin \u0026amp; clips (stock cylinder head compatible)\u003c\/li\u003e\n\u003cli\u003e10.9:1 compression — 91+ octane pump gas recommended\u003c\/li\u003e\n\u003cli\u003eHead gasket kit — includes cylinder head O-ring set and exhaust gasket\u003c\/li\u003e\n\u003cli\u003eBrand-new performance camshaft with new Taiwan TPI bearings (OEM spec)\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cem\u003eKit part numbers: TBW0305, TBW0306, TBW0377, TBW0378, TBW1431, TBW0645\u003c\/em\u003e\u003c\/p\u003e\u003ch3\u003eImportant Notes\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eBolt-on kit for \u003cstrong\u003e2017+ Kawasaki Z125 Pro only\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003eCamshaft is designed for use with the \u003cstrong\u003estock cylinder head\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003eThis is not a decompression cam — starting behavior is not affected\u003c\/li\u003e\n\u003cli\u003eFuel system tuning is required for optimal performance and to prevent running lean\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eInstallation Notes\u003c\/h3\u003e\u003cp\u003eNo installation instructions are included. Parts install in the same manner as OEM components. If you have no engine experience, professional installation is strongly recommended. A free KLX110 shop manual (very similar engine) is available in the INFO section of our website.\u003c\/p\u003e\u003ch3\u003eFitment\u003c\/h3\u003e\u003cul\u003e\u003cli\u003eKawasaki Z125 Pro (2017+)\u003c\/li\u003e\u003c\/ul\u003e","brand":"TBParts","offers":[{"title":"Default Title","offer_id":43324118401265,"sku":"TBW9213","price":299.99,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0626\/1348\/7857\/products\/tbparts-engine-default-title-tb-143cc-bore-kit-performance-camshaft-z125-2017-models-tbw9213-18401265-30520969265393.jpg?v=1773628847","url":"https:\/\/howlingmoto.com\/products\/tbparts-143cc-big-bore-kit-with-performance-camshaft-kawasaki-z125-pro-2017","provider":"Howling Moto","version":"1.0","type":"link"}