{"product_id":"all-balls-accelerator-pump-rebuild-kit-for-kawasaki-klx450r-2003-2011-seals-diaphragms-hardened-bushings","title":"All Balls Accelerator Pump Rebuild Kit for Kawasaki KLX450R 2003-2011 — seals, diaphragms \u0026 hardened bushings","description":"\u003cp\u003e\u003cstrong\u003eAll Balls Racing Accelerator Pump Rebuild Kit restores the accelerator pump assembly for compatible motocross and off-road bikes, renewing performance and sealing for a tighter throttle response.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eThis rebuild kit supplies the parts needed to refresh the accelerator (accel) pump on select Kawasaki, Yamaha, Suzuki and Honda models. It’s intended for closed-course racing and off-road applications — check your bike’s year and model against the applications before ordering to ensure proper fit. The kit replaces worn seals, diaphragms and hardware so the pump can deliver consistent fuel squirt and help maintain crisp throttle transitions.\u003c\/p\u003e\n\n\u003ch3\u003eWhich motorcycles will this kit fit?\u003c\/h3\u003e\n\u003cp\u003eCompatibility covers a range of model years across Kawasaki, Yamaha, Suzuki and Honda platforms often used in off-road and race settings. Always verify the part number and year fitment for your specific carburetor body and model to avoid mismatches.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eKawasaki KLX450R: select years including 2003–2011 variants and AU models 2018–2019 (confirm exact carburetor type).\u003c\/li\u003e\n  \u003cli\u003eKawasaki KX250F\/KX450F and Suzuki RMZ250 model ranges listed in product details.\u003c\/li\u003e\n  \u003cli\u003eYamaha WR250F, WR450F, YFZ450 and YZ450F models within the years specified; compatibility depends on carburetor assembly.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat parts are included and what do they do?\u003c\/h3\u003e\n\u003cp\u003eThe kit contains all essential components to properly rebuild the accelerator pump assembly so it performs like new. Components replace aged rubber, hardened bushings and worn needle shafts to improve longevity and resistance to contaminants.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eReplacement diaphragms and O-rings: restore sealing and prevent fuel leaks.\u003c\/li\u003e\n  \u003cli\u003eComposite POM washers: resist water and dirt, reducing friction and wear.\u003c\/li\u003e\n  \u003cli\u003eCase-hardened metal bushings: plated for corrosion protection and extended service life.\u003c\/li\u003e\n  \u003cli\u003eHardened, precision-ground needle bearing shafts: ensure smooth actuation and accurate fuel delivery.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eHow will installing this kit affect throttle feel and reliability?\u003c\/h3\u003e\n\u003cp\u003eReplacing worn pump components helps maintain consistent fuel metering during sudden throttle openings, which riders notice as improved throttle responsiveness. The upgraded materials and hardened components reduce the frequency of rebuilds and lower the risk of fuel bypass or poor pump action under race conditions.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eSmoother, more predictable throttle transitions during acceleration.\u003c\/li\u003e\n  \u003cli\u003eReduced chance of fuel leakage from degraded seals.\u003c\/li\u003e\n  \u003cli\u003eEnhanced durability in dirty, wet riding environments thanks to composite washers and plated bushings.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat should I check before buying and installing this kit?\u003c\/h3\u003e\n\u003cp\u003eConfirm your bike’s model year and carburetor variant match the kit’s application list, and inspect the existing pump for signs of wear such as torn diaphragms, leaking seals, or loose shafts. Use basic tools and reference service manuals for torque values and assembly order; professional installation is recommended if you’re unsure.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eVerify part fitment against the listed models and your carburetor type.\u003c\/li\u003e\n  \u003cli\u003eInspect current pump parts for wear to justify a full rebuild.\u003c\/li\u003e\n  \u003cli\u003eFollow service manual instructions for reassembly and break-in procedures.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eWho is this for: This All Balls Racing Accelerator Pump Rebuild Kit is aimed at racers, track-day riders and off-road enthusiasts who maintain older carbureted bikes or restore race machines. It’s ideal for anyone needing to replace worn pump internals with durable, race-capable components — provided you confirm vehicle compatibility before purchase.\u003c\/p\u003e\n\u003csection class=\"product-faq-snippet\"\u003e\u003ch3\u003eFAQ\u003c\/h3\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Is this kit compatible with Kawasaki KLX450R models?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Yes for specified years—confirm your specific model year and carburetor type before purchasing.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Can I install the kit myself?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Yes if you have basic mechanical skills and the service manual; otherwise have a mechanic perform the rebuild.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"All Balls","offers":[{"title":"Default Title","offer_id":48086149562526,"sku":"B07DTJ8ZGQ","price":44.48,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0781\/2041\/9486\/files\/all-balls-accelerator-pump-kit-front-packaging.jpg?v=1785886868","url":"https:\/\/northtrailauto.ca\/products\/all-balls-accelerator-pump-rebuild-kit-for-kawasaki-klx450r-2003-2011-seals-diaphragms-hardened-bushings","provider":"North Trail Auto","version":"1.0","type":"link"}