{"title":"IAME KA100 Head \u0026 Cylinder Parts","description":"\u003cp\u003eIAME KA100 Head \u0026amp; Cylinder Parts Collection\u003c\/p\u003e","products":[{"product_id":"iame-ka100-cylinder-head","title":"(1) IAME KA100 Cylinder Head – Stock Replacement","description":"\u003cp\u003eThe \u003cstrong\u003eIAME KA100 cylinder head\u003c\/strong\u003e is the factory OEM replacement head for the IAME KA100 100cc reed-jet two-stroke kart engine. Manufactured by IAME (Industria Attrezzi Meccanici ed Affini), this cylinder head is produced to exact factory specifications and tolerances, ensuring proper combustion chamber volume and squish clearance right out of the box.\u003c\/p\u003e\n\u003cp\u003eThis cylinder head fits all current IAME KA100 engines used in competitive karting across North America, including series sanctioned by SKUSA (SuperKarts! USA), USPKS, WKA, and regional club racing programs. The KA100 head uses four M8 head studs with standard IAME head nuts (sold separately) and seals against the cylinder with the D-37049 head gasket O-ring.\u003cstrong\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eWhether you are replacing a damaged head after a detonation event, refreshing your top end for a new season, or need a spare for tech compliance, this genuine IAME cylinder head is the correct OEM part. Available at CMC Karting with fast shipping across North America.\u003c\/p\u003e","brand":"IAME USA","offers":[{"title":"Default Title","offer_id":47742706581725,"sku":"IAA-40100-2","price":315.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0731\/6770\/0189\/files\/CMC_KA100_head.png?v=1775575641"},{"product_id":"iame-ka100-head-nut","title":"(2) IAME KA100 Head Nut – Standard M8","description":"\u003cp\u003eThe \u003cstrong\u003eIAME KA100 head nut\u003c\/strong\u003e is the factory OEM fastener used to secure the cylinder head to the cylinder studs on the IAME KA100 engine. These standard-length M8 head nuts are torqued to spec during assembly and should be inspected regularly for fatigue or thread damage, especially after top-end rebuilds.\u003c\/p\u003e\n\u003cp\u003eThis head nut fits all IAME KA100 and X30 engines that share the same M8 head stud pattern. Each KA100 cylinder head requires four head nuts and four matching washers (part number 10635, sold separately). For tech-wire applications requiring a drilled nut, see part number 10351 (long cylinder head nut with tech wire hole).\u003cstrong\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eHead nuts are inexpensive insurance against catastrophic engine failure. Replace them during every major top-end service or anytime you notice thread wear. Keep spares in your toolbox for race weekends. Available at CMC Karting.\u003c\/p\u003e","brand":"IAME USA","offers":[{"title":"Default Title","offer_id":47742706843869,"sku":"10350","price":3.92,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0731\/6770\/0189\/files\/CMCKA100cylinderheadnut_8cc4e6a3-875d-413d-ab1a-b84de859ae5c.png?v=1775575781"},{"product_id":"iame-ka100-head-nut-washer","title":"(3) IAME KA100 Head Nut Washer – 3mm Thick","description":"\u003cp\u003eThe \u003cstrong\u003eIAME KA100 head nut washer\u003c\/strong\u003e is the factory OEM washer used under each head nut on the IAME KA100 and X30 cylinder head assembly. This washer is 3mm thick (H=3mm) and provides proper load distribution across the cylinder head flange when the head nuts are torqued to spec.\u003c\/p\u003e\n\u003cp\u003eEach KA100 cylinder head requires four washers, one under each head nut. These washers should be replaced during every top-end rebuild or whenever they show signs of deformation, galling, or uneven wear. Using worn washers can lead to improper clamping force and potential head gasket sealing issues.\u003cstrong\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eA small but critical component for maintaining proper cylinder head clamping. Keep a fresh set in your spares kit. Available at CMC Karting.\u003c\/p\u003e","brand":"IAME USA","offers":[{"title":"Default Title","offer_id":47742706942173,"sku":"10635","price":1.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0731\/6770\/0189\/files\/CMCKA100headnutwasher.png?v=1775575824"},{"product_id":"iame-ka100-long-head-nut-tech-wire","title":"(4) IAME KA100 Long Head Nut – Drilled for Tech Wire","description":"\u003cp\u003eThe \u003cstrong\u003eIAME KA100 long cylinder head nut with tech wire hole\u003c\/strong\u003e is the drilled head nut required for series that mandate safety wire (tech wire) on the cylinder head. This longer nut features a through-hole for threading safety wire, preventing the nut from backing off under vibration and satisfying post-race technical inspection requirements.\u003c\/p\u003e\n\u003cp\u003eMany sanctioning bodies including SKUSA and USPKS require tech wire on specific engine fasteners for the KA100 class. This drilled head nut is the factory IAME solution for that requirement. It fits all IAME KA100 engines using the standard M8 head stud pattern. You will typically need two drilled head nuts per cylinder head (diagonal pattern), with the remaining two positions using standard head nuts (10350).\u003cstrong\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eEssential for racers competing in series with tech wire requirements. Do not substitute standard nuts where drilled nuts are mandated — it will result in a post-race disqualification. Available at CMC Karting.\u003c\/p\u003e\n\u003cp\u003e\u003cscribe-shadow id=\"crxjs-ext\" data-crx=\"okfkdaglfjjjfefdcppliegebpoegaii\" style=\"position: fixed; width: 0px; height: 0px; top: 0px; left: 0px; z-index: 2147483647; overflow: visible; visibility: visible;\"\u003e\u003c\/scribe-shadow\u003e\u003c\/p\u003e","brand":"IAME USA","offers":[{"title":"Default Title","offer_id":47742707007709,"sku":"10351","price":17.45,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0731\/6770\/0189\/files\/CMC_KA100_head_sealing_nut.png?v=1775575616"},{"product_id":"iame-ka100-spark-plug-lead-retaining-spring","title":"(5) IAME KA100 Spark Plug Lead Retaining Spring","description":"\u003cp\u003eThe \u003cstrong\u003eIAME KA100 spark plug lead retaining spring\u003c\/strong\u003e secures the spark plug wire and boot to the cylinder head, preventing the plug wire from vibrating loose during racing. This small but important clip-style spring ensures consistent spark delivery by keeping the plug cap firmly seated on the spark plug throughout a race session.\u003c\/p\u003e\n\u003cp\u003eThis retaining spring fits all IAME KA100 engines. It mounts to the cylinder head fins and holds the spark plug lead in position. Over time, the spring can lose tension from heat cycling and vibration. A loose plug wire is one of the most common causes of intermittent misfires that are difficult to diagnose trackside.\u003cstrong\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eA cheap part that prevents expensive problems. Replace it if the spring is bent, stretched, or no longer grips the plug wire securely. Available at CMC Karting.\u003c\/p\u003e\n\u003cp\u003e\u003cscribe-shadow id=\"crxjs-ext\" data-crx=\"okfkdaglfjjjfefdcppliegebpoegaii\" style=\"position: fixed; width: 0px; height: 0px; top: 0px; left: 0px; z-index: 2147483647; overflow: visible; visibility: visible;\"\u003e\u003c\/scribe-shadow\u003e\u003c\/p\u003e","brand":"IAME USA","offers":[{"title":"Default Title","offer_id":47742707040477,"sku":"10787","price":9.6,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0731\/6770\/0189\/files\/CMCKA100SparkPlugSpring.png?v=1775585950"},{"product_id":"iame-ka100-head-gasket-o-ring","title":"(8) IAME KA100 Head Gasket O-Ring","description":"\u003cp\u003eThe \u003cstrong\u003eIAME KA100 head gasket O-ring\u003c\/strong\u003e seals the joint between the cylinder head and the cylinder barrel on the IAME KA100 engine. This rubber O-ring sits in a machined groove and provides a reliable combustion seal when the head is properly torqued. It is a critical sealing component that should be inspected and replaced during every top-end service.\u003c\/p\u003e\n\u003cp\u003eThis O-ring fits all IAME KA100 and X30 engines that share the same cylinder head interface. A worn, cracked, or improperly seated O-ring can cause compression loss, inconsistent power delivery, and potential overheating. Always use a new O-ring whenever the head is removed from the cylinder.\u003cstrong\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThis is a must-replace item during every top-end refresh. Keep several in your spares kit — they are inexpensive and prevent costly engine damage. Available at CMC Karting.\u003c\/p\u003e","brand":"IAME USA","offers":[{"title":"Default Title","offer_id":47742707171549,"sku":"D-37049","price":7.52,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0731\/6770\/0189\/files\/CMC_KA100_Reedjet_O-Ring.png?v=1775586333"},{"product_id":"iame-ka100-copper-head-gasket","title":"(10) IAME KA100 Copper Head Gasket – 0.05 \/ 0.10 \/ 0.15mm","description":"\u003cp\u003eThe \u003cstrong\u003eIAME KA100 copper head gasket\u003c\/strong\u003e is a precision-thickness shim gasket that sits between the cylinder head and the cylinder barrel. These thin copper gaskets are used to fine-tune the squish clearance and effective compression ratio of the KA100 engine. Available in three thicknesses — 0.05mm, 0.10mm, and 0.15mm — they allow racers and engine builders to dial in the exact deck height needed for optimal performance within class rules.\u003c\/p\u003e\n\u003cp\u003eCopper head gaskets are installed in combination with (or instead of) the standard head gasket O-ring, depending on the desired squish measurement. Engine builders commonly stack gaskets to achieve a specific total thickness. These gaskets fit all IAME KA100 engines and are cross-compatible with the X30 platform.\u003cstrong\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003ePrecise squish clearance tuning is one of the most impactful adjustments you can make to a KA100 engine. Keep a selection of all three thicknesses in your spares so you can make adjustments trackside. Available at CMC Karting.\u003c\/p\u003e","brand":"IAME USA","offers":[{"title":"0.05mm","offer_id":47742707237085,"sku":"IAA-40200-0.05","price":3.32,"currency_code":"USD","in_stock":true},{"title":"0.10mm","offer_id":47742913478877,"sku":"IAA-40200-0.10","price":3.32,"currency_code":"USD","in_stock":true},{"title":"0.15mm","offer_id":47742913577181,"sku":"IAA-40200-0.15","price":3.32,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0731\/6770\/0189\/files\/CMCKA100CopperHeadGasket.png?v=1775586595"},{"product_id":"iame-ka100-cylinder-base-gasket","title":"(11) IAME KA100 Cylinder Base Gasket – SUD-TOP\/X30","description":"\u003cp\u003eThe \u003cstrong\u003eIAME KA100 cylinder base gasket\u003c\/strong\u003e seals the joint between the bottom of the cylinder barrel and the top of the crankcase. These gaskets are available in multiple thicknesses, allowing engine builders to adjust port timing and overall cylinder height. Proper base gasket selection directly affects port timing, which impacts powerband characteristics and overall engine performance.\u003c\/p\u003e\n\u003cp\u003eThese cylinder base gaskets are cross-compatible between the IAME KA100, X30, and earlier Leopard\/Gazelle platforms using the SUD-TOP configuration. Available in four thickness options: 4\/10, 2\/10, 1\/10, and 5\/100 (X30-spec). Select the correct thickness based on your engine builder's specifications or the factory service manual.\u003cstrong\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eBase gasket thickness is a critical tuning variable. Always verify your target port timing and use a dial indicator to confirm measurements before final assembly. Keep spares on hand — you will need fresh gaskets any time the cylinder is removed. Available at CMC Karting.\u003c\/p\u003e","brand":"IAME USA","offers":[{"title":"0.05mm Thick (.002) - EBP-125048 (.00196)","offer_id":47742962761949,"sku":"EBP-125048","price":7.29,"currency_code":"USD","in_stock":true},{"title":"0.1mm Thick (.004\") - EBP-125047 (.0039)","offer_id":47743055691997,"sku":"EBP-125047","price":7.3,"currency_code":"USD","in_stock":true},{"title":"0.2mm Thick (.008\") - EBP-125046 (.0078)","offer_id":47743055757533,"sku":"EBP-125046","price":3.92,"currency_code":"USD","in_stock":true},{"title":"0.4mm Thick (.016\") - EBP-125045 (.0157)","offer_id":47743056150749,"sku":"EBP-125045","price":3.92,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0731\/6770\/0189\/files\/CMCKA100CylinderHeadGasket.png?v=1775587883"},{"product_id":"iame-ka100-cylinder-reedjet","title":"(13A) IAME KA100 Cylinder USA","description":"\u003cp\u003eThe \u003cstrong\u003eIAME KA100 cylinder\u003c\/strong\u003e is the complete bare cylinder barrel for the KA100 100cc reed-jet two-stroke kart engine. This is the factory OEM cylinder, produced within IAME's standard manufacturing tolerances at their facility in Zingonia, Italy. Each cylinder arrives with a stock bore ready for piston fitment per the IAME factory service specifications.\u003c\/p\u003e\n\u003cp\u003eThis cylinder fits all current IAME KA100 engines and mounts between the crankcase assembly and the cylinder head. It includes the reed valve intake port, exhaust port, and transfer ports machined to factory KA100 specifications. The cylinder is used across all major North American karting series that run the KA100 class, including SKUSA, USPKS, WKA, and regional programs.\u003cstrong\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eIncludes:\u003c\/strong\u003e Bare cylinder only — head, gaskets, and hardware sold separately\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eReplace your cylinder when the bore shows scoring, excessive wear, or is out of tolerance per the IAME technical regulations. This is the most significant single component in the KA100 top end and a genuine IAME part ensures compliance with series tech rules. Available at CMC Karting.\u003c\/p\u003e\n\u003cp\u003e\u003cscribe-shadow id=\"crxjs-ext\" data-crx=\"okfkdaglfjjjfefdcppliegebpoegaii\" style=\"position: fixed; width: 0px; height: 0px; top: 0px; left: 0px; z-index: 2147483647; overflow: visible; visibility: visible;\"\u003e\u003c\/scribe-shadow\u003e\u003c\/p\u003e","brand":"IAME USA","offers":[{"title":"Default Title","offer_id":47742707335389,"sku":"IAA-01000\/1","price":705.32,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0731\/6770\/0189\/files\/CMCKA100Cylinder.png?v=1775592302"}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0731\/6770\/0189\/collections\/CMC_KA100_Head_Cylinder_Diagram.png?v=1775082370","url":"https:\/\/cmckarting.com\/collections\/iame-ka100-head-cylinder-parts.oembed","provider":"CMC Karting","version":"1.0","type":"link"}