{"product_id":"170cc-forged-bore-kit-cam-dowel-pins-tbw9474","title":"170cc forged bore kit, cam, \u0026 dowel pins","description":"\u003ch5\u003eTB 170cc, HC, Forged Big Bore \u0026amp; Cam Kit – KLX140\u003c\/h5\u003e\n\u003cp style=\"font-weight: 400\"\u003eTBparts high compression forged piston 170cc big bore \u0026amp; cam kit. This will make your KLX140 a lot more fun to ride by adding some much needed power! Our new high compression forged piston is dome matched for the stock cylinder head to give you the ultimate high quality performance package. Combine that with our performance cam to really wake that KLX140 up! Our cam opens the valves up faster and provides more lift to let even more air and fuel in for even more power! Great for playbike racing and idles low enough to use on the trails too!\u003c\/p\u003e\n\u003cp\u003eKey Features:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eHigh Compression Forged piston Kit w\/ Wrist Pin, Ring Set, Cir-clips\u003c\/li\u003e\n\u003cli\u003eSafe with 91+ octane Pump Fuel\u003c\/li\u003e\n\u003cli\u003eTBparts 63mm aluminum cylinder with HD cast in steel sleeve\u003c\/li\u003e\n\u003cli\u003e63mm Top End gasket kit w\/NEW dowel pins\u003c\/li\u003e\n\u003cli\u003ePerformance high lift cam, complete with new bearings\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eCompression ratio on this piston is:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e10.9:1 – 170cc bore kit combined with the OEM cylinder head\u003c\/li\u003e\n\u003cli\u003e12:1 – bore kit w\/+6 stroker crank 188cc\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eIn both combinations above, high octane pump gas can be used (Race gas is not required).\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: #ed1c24\"\u003e\u003cstrong\u003eNote: 2025+ KLX140s – require case boring to fit. Our cylinder skirt is 65.95mm 2025+ cases are only 65.4mm wide.\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp style=\"font-weight: 400\"\u003eThere are no installation instructions, but if you can replace your piston, you can install this kit. If you don’t have any experience working on your engine, we highly recommend having a professional technician install this kit or, at a minimum, purchasing the shop manual for your bike available from your local Kawasaki dealer. The parts are installed in the same manner as the OEM parts.\u003c\/p\u003e\n\u003cp style=\"font-weight: 400\"\u003eNote – A good jetting base for the factory carburetor is +1 size Pilot jet and +1 or 2 sizes up on the main jet.\u003c\/p\u003e\n\u003cp style=\"font-weight: 400\"\u003eInstallation note – \u003cspan style=\"color: #333333;font-size: 14.4px\"\u003eKLX140 camshaft bolts are reverse threaded, turn them right\/clockwise to loosen\/remove. Torque to 87 INCH-LBS \u0026amp; Use red thread lock\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003ePart Number:\u003c\/strong\u003e TBW9474\u003c\/p\u003e","brand":"TB Parts","offers":[{"title":"Default Title","offer_id":50103019602197,"sku":"TBW9474 -- (TBW1795, TBW1545, TBW1544, TBW1543, TBW1515)","price":284.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1205\/7200\/files\/9474.jpg?v=1787107403","url":"https:\/\/www.factoryminibikes.com\/products\/170cc-forged-bore-kit-cam-dowel-pins-tbw9474","provider":"Factory Minibikes","version":"1.0","type":"link"}