{"product_id":"mikuni-19-591-main-jet-19-591","title":"Mikuni 19.591 Main Jet #019.591","description":"\u003cp\u003eMikuni Main Jet N424-36-128KIT FEATURES:\u003c\/p\u003e\u003cp\u003eAll kits sold with valve, spring, retainer, seat to do complete replacement of either intake or exhaust side\u003c\/p\u003e\u003cp\u003eAll components are manufactured under iso 9001 certified factories\u003c\/p\u003e\u003cp\u003eNitride coated components to improve heat transer \u0026amp; carbon buildup for increased valve train life\u003c\/p\u003e\u003cp\u003eVALVE FEATURES:\u003c\/p\u003e\u003cp\u003eForged one-piece construction to help with weight reduction \u0026amp; improved flow\u003c\/p\u003e\u003cp\u003ePerformance valves receive a swirl polish, smooth stem treatment, and are made of 21-2n\/suh35ht stainless steel\u003c\/p\u003e\u003cp\u003eSPRING FEATURES:\u003c\/p\u003e\u003cp\u003eSprings are made of swosc-v material (oil-tempered steel wire)\u003c\/p\u003e\u003cp\u003eSome springs fearture a progressive style design with more coils on one end of the spring\u003c\/p\u003e\u003cp\u003eProgressive springs are heavier on one end and should always be installed towards the bottom\u003c\/p\u003e\u003cp\u003eNon-progressive springs are paint marked and should be installed towards the top\u003c\/p\u003e\u003cp\u003eSEATS \u0026amp; RETAINERS:\u003c\/p\u003e\u003cp\u003eMade from 4041 steel (select applications use 707546 aluminum)\u003c\/p\u003e\u003cp\u003eDesigned to work with psychic stainless steel valves and springs\u003c\/p\u003e\u003cbr\u003e\u003cbr\u003e","brand":"MIKUNI","offers":[{"title":"Default Title","offer_id":42870992240803,"sku":"222109","price":11.36,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0560\/8620\/0483\/files\/c2b37a59-8b9b-4e9d-9e46-9c893cdb7d89_84c59731-a04e-4add-8d16-96b7284d5ecf.jpg?v=1694167873","url":"https:\/\/mxpowerplay.com\/products\/mikuni-19-591-main-jet-19-591","provider":"MX PowerPlay ","version":"1.0","type":"link"}