{"product_id":"k20wyl-carburetor-rebuild-kit-with-primer-bulb","title":"K20-WYL Carburetor Rebuild Kit with Primer Bulb - Fits Zama WYL Series, Shindaiwa R200 - Replaces 753-04014, 615-873","description":"\u003ch2\u003eK20-WYL Carburetor Rebuild Kit with Primer Bulb\u003c\/h2\u003e\n\u003ch3\u003eKey Features\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eComplete Fuel System Overhaul:\u003c\/strong\u003e This comprehensive kit includes all necessary gaskets, metering diaphragms, pump diaphragms, and a needle valve to restore the factory performance of WYL series carburetors.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEthanol-Resistant Diaphragms:\u003c\/strong\u003e Manufactured from high-grade, resilient materials designed to resist the hardening, shrinking, and cracking caused by modern ethanol-blended fuels.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePrecision Needle Valve:\u003c\/strong\u003e Features a high-quality viton-tipped needle to ensure a perfect seal, preventing engine flooding and ensuring a stable, consistent idle.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIntegrated Fine-Mesh Screen:\u003c\/strong\u003e Includes a replacement internal fuel strainer to catch microscopic debris before it can clog the sensitive internal carburetor jets.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHigh-Response Primer Bulbs:\u003c\/strong\u003e Includes UV-resistant, clear primer bulbs that remain flexible in cold temperatures, ensuring reliable fuel delivery to the carburetor for easier starts.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eReplaces \/ Cross-Reference Part Numbers\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eWalbro:\u003c\/strong\u003e K20-WYL\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMTD \/ Troy-Bilt:\u003c\/strong\u003e 753-04014\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStens:\u003c\/strong\u003e 615-873\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEcho:\u003c\/strong\u003e 12300016130\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRyobi:\u003c\/strong\u003e 791-181596\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eCompatibility \u0026amp; Fitment\u003c\/h3\u003e\n\u003cp\u003eThis kit is designed for the widely used Walbro WYL series rotary valve carburetors found on many small 2-cycle and 4-cycle engines. Key compatible models include:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eShindaiwa Models:\u003c\/strong\u003e R200, S200, T230, T231, T2500, XS200, XT2500.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHonda Engines:\u003c\/strong\u003e GX22, GX31.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEcho \u0026amp; Ryobi:\u003c\/strong\u003e GT1100, CS221, and various 26cc \/ 31cc handheld trimmers.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNote:\u003c\/strong\u003e Specifically fits \u003cstrong\u003eRotary Valve\u003c\/strong\u003e carburetors. If your carburetor has a traditional flat \"butterfly\" throttle plate, this kit will not be compatible.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eWhen to Replace\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eStiff or Brittle Diaphragms:\u003c\/strong\u003e The engine starts but dies immediately or won't draw fuel because the internal diaphragms have lost their flexibility and can no longer \"pump\" fuel.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEngine Surging:\u003c\/strong\u003e The RPMs fluctuate wildly at idle or mid-throttle, often caused by a pinhole leak in the metering diaphragm.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHard Starting:\u003c\/strong\u003e Excessive pulls are required to start, or the primer bulb stays sucked in, indicating a blockage in the internal screens or a failed check valve.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFuel Leaking:\u003c\/strong\u003e Gas is seeping from the carburetor seams or the primer bulb base, which poses a significant fire hazard.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLong-Term Storage:\u003c\/strong\u003e If the equipment has sat for more than one season with fuel inside, the gaskets have likely \"varnished\" and require replacement to restore proper airflow.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eInstallation Tips\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eWork on a Clean Surface:\u003c\/strong\u003e Carburetor internals are extremely sensitive to dust. Use a clean, lint-free cloth and a tray to keep the small needle and springs from rolling away.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNote the Gasket Order:\u003c\/strong\u003e Pay close attention to the sequence of the gaskets and diaphragms as you remove them. Installing a diaphragm before a gasket (or vice versa) can prevent the fuel pump from functioning.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eClean the Passages:\u003c\/strong\u003e While the carburetor is disassembled, use a dedicated carburetor cleaner spray and compressed air to blow out all internal ports and the fine metal screen area.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDo Not Poke the Jets:\u003c\/strong\u003e Never use a wire or needle to clean the internal brass jets, as this can enlarge the holes and permanently ruin the carburetor's fuel-air calibration.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThe Primer Test:\u003c\/strong\u003e Once reassembled, press the primer bulb 10 times. You should see fuel fill the bulb and return to the tank via the clear line, confirming the internal valves are sealing correctly.\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"BlueStarsParts","offers":[{"title":"Default Title","offer_id":45371209711805,"sku":"AZ00929062","price":7.27,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/2576\/7548\/files\/AZ00929062_1_b603025c-7d41-4b82-b506-5acb625da728.jpg?v=1762246296","url":"https:\/\/bluestarspartstrend.com\/products\/k20wyl-carburetor-rebuild-kit-with-primer-bulb","provider":"BlueStars Parts","version":"1.0","type":"link"}