{"product_id":"iame-ka100-special-nut-z9","title":"(352) IAME KA100 Special Nut for Z9 Sprocket","description":"\u003cp\u003eThe \u003cstrong\u003eIAME KA100 special nut for Z9 sprocket\u003c\/strong\u003e is a purpose-built fastener set designed specifically for mounting the 9-tooth clutch sprocket on the KA100 engine. The Z9 sprocket uses a different mounting configuration than the standard Z10–Z13 sprockets, requiring this special nut and washer combination for proper fitment and retention.\u003c\/p\u003e\n\u003cp\u003eThis nut replaces the standard starter nut (D-75570) when running the Z9 sprocket configuration. Do not substitute a standard nut when using the Z9 sprocket — the special nut is designed to work with the Z9 bushing (S1145\/3) and sprocket geometry. Always verify proper engagement and torque before running.\u003cstrong\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eFitment:\u003c\/strong\u003e IAME KA100 — Z9 sprocket configuration only\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eQuantity:\u003c\/strong\u003e 1 nut\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eRequired when running the Z9 sprocket — do not substitute with the standard starter nut. Available at CMC Karting.\u003c\/p\u003e","brand":"IAME USA","offers":[{"title":"Default Title","offer_id":47826474008797,"sku":"X3012553-US","price":13.45,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0731\/6770\/0189\/files\/CMCKA100352aClutchGroup.png?v=1776797394","url":"https:\/\/cmckarting.com\/products\/iame-ka100-special-nut-z9","provider":"CMC Karting","version":"1.0","type":"link"}