{"product_id":"namura-040-over-bore-top-end-rebuild-kit-for-honda-trx400ex-trx400x-86mm","title":"Namura .040 Over Bore Top End Rebuild Kit for Honda TRX400EX \u0026 TRX400X 86mm","description":"\u003ch2\u003e.040 Over Bore Top End Rebuild Kit for Namura\u003c\/h2\u003e\u003cp\u003eThis top end rebuild kit provides a .040 over bore piston kit sized at 86mm for Honda TRX400EX and TRX400X ATVs, including all necessary components for a complete top end rebuild.\u003c\/p\u003e\u003ch4\u003eOverview\u003c\/h4\u003e\u003cp\u003eThe .040 over bore top end rebuild kit for Namura is designed for Honda TRX400EX and TRX400X models, offering a reliable solution to restore lost compression and power. This kit includes a high-performance piston, rings, wrist pin, and gaskets, ensuring a thorough refresh of the engine's top end. It is ideal for dirt and sport ATV enthusiasts seeking to revive their machine's performance.\u003c\/p\u003e\u003ch4\u003eBuilt For Performance\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003ePrecision-machined piston with .040 over bore sizing\u003c\/li\u003e\n\u003cli\u003eHigh-quality ring set for optimal seal and compression\u003c\/li\u003e\n\u003cli\u003eIncludes complete gasket set for hassle-free installation\u003c\/li\u003e\n\u003cli\u003eDesigned for Honda TRX400EX and TRX400X engines\u003c\/li\u003e\n\u003cli\u003eDurable construction to withstand high RPM operation\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eFits These Machines\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003efor Honda TRX400EX\u003c\/li\u003e\n\u003cli\u003efor Honda TRX400X\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eOn-The-Job Use\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eRestoring top end performance on worn ATV engines\u003c\/li\u003e\n\u003cli\u003eRebuilding engines after bore damage or wear\u003c\/li\u003e\n\u003cli\u003ePreparing race or trail ATVs for competitive use\u003c\/li\u003e\n\u003cli\u003eReplacing original piston during scheduled maintenance\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eSpecs At A Glance\u003c\/h4\u003e\u003ctable\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eBore Size\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e86mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eOverbore\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e.040 inch\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eKit Type\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eTop End Rebuild Kit\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\u003ch4\u003eGood To Know\u003c\/h4\u003e\u003cp\u003e\u003cstrong\u003eQ:\u003c\/strong\u003e Does this kit include a piston pin and clips? \u003cstrong\u003eA:\u003c\/strong\u003e Yes, the kit typically includes the wrist pin and circlips for complete installation.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eQ:\u003c\/strong\u003e Do I need to rejet the carburetor after installing an overbore piston? \u003cstrong\u003eA:\u003c\/strong\u003e It is recommended to check and adjust jetting due to increased displacement, but many riders find the stock jetting adequate for mild overbores.\u003c\/p\u003e\u003cp\u003e\u003cem\u003eSlight variation in finish or dimensions may occur between production runs, and fit can depend on serial number, so confirm compatibility before ordering.\u003c\/em\u003e\u003c\/p\u003e","brand":"Solid Spare","offers":[{"title":"Default Title","offer_id":44949772370006,"sku":"SZ1F14610","price":219.89,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0697\/8460\/0662\/files\/1_6c486d26-3df9-41da-930b-5ed35b995c3c.jpg?v=1781398660","url":"https:\/\/www.solidspare.com\/products\/namura-040-over-bore-top-end-rebuild-kit-for-honda-trx400ex-trx400x-86mm","provider":"Solid Spare","version":"1.0","type":"link"}