{"title":"SEMTO ST-FL2 Engine \u0026 Parts","description":null,"products":[{"product_id":"semto-st-fl2-8-6cc-2-cylinder-engine-diy-kits-nitro-4-stroke-model-engine-for-beginner","title":"SEMTO ST-FL2 8.6cc 2 Cylinder Engine DIY Kits Nitro 4 Stroke Model Engine for Beginner","description":"\u003cstyle\u003e\n.skfl2{font-family:inherit!important;color:#222!important;line-height:1.6!important;max-width:1000px;margin:0 auto!important;font-size:15px!important}\n.skfl2 *{box-sizing:border-box!important}\n.skfl2 h2{font-size:20px!important;margin:28px 0 12px!important;padding-left:10px!important;border-left:4px solid #EA5504!important;color:#111!important;line-height:1.3!important}\n.skfl2 p{margin:0 0 10px!important}\n.skfl2 a{color:#EA5504!important;text-decoration:underline!important}\n.skfl2 a.skfl2-btn{display:inline-block!important;background:#EA5504!important;color:#fff!important;text-decoration:none!important;font-weight:700!important;padding:12px 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li::before{content:counter(skstep)!important;position:absolute!important;left:12px!important;top:12px!important;width:28px!important;height:28px!important;border-radius:50%!important;background:#111!important;color:#fff!important;font-weight:800!important;font-size:13px!important;display:flex!important;align-items:center!important;justify-content:center!important}\n.skfl2-steps b{color:#111!important}\n\n\/* FACTS *\/\n.skfl2-facts{display:grid!important;grid-template-columns:repeat(2,1fr)!important;gap:8px!important;margin:0 0 8px!important}\n.skfl2-fact{background:#f6f6f6!important;border-radius:6px!important;padding:10px!important;text-align:center!important}\n.skfl2-fact b{display:block!important;font-size:17px!important;color:#111!important}\n.skfl2-fact small{font-size:12px!important;color:#666!important}\n\n\/* BOX *\/\n.skfl2-box{border:2px solid #EA5504!important;border-radius:10px!important;padding:16px!important;margin:0 0 8px!important}\n.skfl2-box h3{font-size:16px!important;margin:0 0 8px!important;color:#111!important}\n.skfl2-cols{display:grid!important;grid-template-columns:1fr!important;gap:14px!important}\n.skfl2 ul{margin:0 0 10px!important;padding-left:20px!important}\n.skfl2 li{margin:0 0 5px!important}\n\n\/* VIDEO *\/\n.skfl2-video{position:relative!important;width:100%!important;aspect-ratio:16\/9!important;border-radius:10px!important;overflow:hidden!important;background:#000!important}\n\n\/* FEATURES \/ SPECS \/ FAQ *\/\n.skfl2-feat{display:grid!important;grid-template-columns:1fr!important;gap:10px!important}\n.skfl2-feat div{background:#f6f6f6!important;border-radius:6px!important;padding:12px 14px!important}\n.skfl2-feat b{color:#111!important}\n.skfl2-table{width:100%!important;border-collapse:collapse!important;font-size:14px!important}\n.skfl2-table th,.skfl2-table td{border:1px solid #e3e3e3!important;padding:8px 10px!important;text-align:left!important;vertical-align:top!important}\n.skfl2-table th{background:#f6f6f6!important;width:42%!important;font-weight:600!important;color:#111!important}\n.skfl2 details{border:1px solid #e3e3e3!important;border-radius:6px!important;margin:0 0 8px!important;background:#fff!important}\n.skfl2 summary{cursor:pointer!important;padding:12px 14px!important;font-weight:600!important;color:#111!important;list-style:none!important}\n.skfl2 summary::-webkit-details-marker{display:none!important}\n.skfl2 summary::after{content:\"+\"!important;float:right!important;color:#EA5504!important;font-weight:700!important}\n.skfl2 details[open] summary::after{content:\"\\2212\"!important}\n.skfl2 details\u003ediv{padding:0 14px 12px!important}\n\n@media(min-width:750px){\n.skfl2-hero{grid-template-columns:3fr 2fr!important;gap:28px!important}\n.skfl2-hero h2{font-size:32px!important}\n.skfl2-facts{grid-template-columns:repeat(4,1fr)!important}\n.skfl2-cols{grid-template-columns:1fr 1fr!important}\n.skfl2-plans{grid-template-columns:3fr 2fr!important;align-items:start!important}\n.skfl2-feat{grid-template-columns:1fr 1fr!important}\n.skfl2-why{grid-template-columns:repeat(4,1fr)!important}\n.skfl2 ol.skfl2-steps{grid-template-columns:repeat(2,1fr)!important}\n.skfl2-deal{padding:24px!important}\n.skfl2-deal-title{font-size:26px!important}\n}\n\u003c\/style\u003e\n\n\u003cdiv class=\"skfl2\"\u003e\n\n  \u003c!-- HERO --\u003e\n  \u003cdiv class=\"skfl2-hero\"\u003e\n    \u003cdiv\u003e\n      \u003cspan class=\"skfl2-beginner\"\u003e✓ Beginner-Friendly\u003c\/span\u003e\n      \u003cspan class=\"skfl2-eyebrow\"\u003eSEMTO ST-FL2 · 8.6cc Inline Twin\u003c\/span\u003e\n      \u003ch2\u003eYour First Nitro Engine: A Real SOHC Twin You Build Yourself\u003c\/h2\u003e\n      \u003cp class=\"skfl2-hero-sub\"\u003eNever built a running engine before? The ST-FL2 is made for that first step. It has a simple setup, push-button start, and a full build video to follow, all in the layout of a real car engine.\u003c\/p\u003e\n      \u003cul class=\"skfl2-hl\"\u003e\n        \u003cli\u003e\n\u003cspan class=\"skfl2-hl-num\"\u003e1\u003c\/span\u003e\u003cspan\u003e\u003cb\u003eSimple to tune.\u003c\/b\u003e One carburetor and an adjustable cam, so there's just one mixture to learn instead of one per cylinder.\u003c\/span\u003e\n\u003c\/li\u003e\n        \u003cli\u003e\n\u003cspan class=\"skfl2-hl-num\"\u003e2\u003c\/span\u003e\u003cspan\u003e\u003cb\u003ePush-button start.\u003c\/b\u003e A 480 brushed electric starter does the work. No pull cord and no starter box technique to master.\u003c\/span\u003e\n\u003c\/li\u003e\n        \u003cli\u003e\n\u003cspan class=\"skfl2-hl-num\"\u003e3\u003c\/span\u003e\u003cspan\u003e\u003cb\u003eBuild along with video.\u003c\/b\u003e Follow the full assembly video and the printed manual step by step.\u003c\/span\u003e\n\u003c\/li\u003e\n        \u003cli\u003e\n\u003cspan class=\"skfl2-hl-num\"\u003e4\u003c\/span\u003e\u003cspan\u003e\u003cb\u003eReal automotive design.\u003c\/b\u003e SOHC inline twin in CNC-machined, anodized aluminum. A first engine you'll still want on display.\u003c\/span\u003e\n\u003c\/li\u003e\n      \u003c\/ul\u003e\n    \u003c\/div\u003e\n    \u003cdiv\u003e\n      \u003cdiv class=\"skfl2-short\"\u003e\n        \u003ciframe src=\"https:\/\/www.youtube.com\/embed\/AWrpveAVN7s\" title=\"SEMTO ST-FL2 engine start-up\" loading=\"lazy\" allow=\"accelerometer; encrypted-media; gyroscope; picture-in-picture\" allowfullscreen\u003e\u003c\/iframe\u003e\n      \u003c\/div\u003e\n      \u003cp class=\"skfl2-cap\"\u003eHear it start up\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/div\u003e\n\n  \u003c!-- KEY FACTS --\u003e\n  \u003cdiv class=\"skfl2-facts\"\u003e\n    \u003cdiv class=\"skfl2-fact\"\u003e\n\u003cb\u003e8.6cc\u003c\/b\u003e\u003csmall\u003eInline twin (2 × 4.3cc)\u003c\/small\u003e\n\u003c\/div\u003e\n    \u003cdiv class=\"skfl2-fact\"\u003e\n\u003cb\u003e4-Stroke\u003c\/b\u003e\u003csmall\u003eSOHC nitro engine\u003c\/small\u003e\n\u003c\/div\u003e\n    \u003cdiv class=\"skfl2-fact\"\u003e\n\u003cb\u003e1.2 HP\u003c\/b\u003e\u003csmall\u003e3,000–20,000 rpm\u003c\/small\u003e\n\u003c\/div\u003e\n    \u003cdiv class=\"skfl2-fact\"\u003e\n\u003cb\u003eWater-Cooled\u003c\/b\u003e\u003csmall\u003eBuilt-in water pump\u003c\/small\u003e\n\u003c\/div\u003e\n  \u003c\/div\u003e\n\n  \u003c!-- BUNDLE DEAL --\u003e\n  \u003cdiv class=\"skfl2-deal\" style=\"margin-top:20px\"\u003e\n    \u003cdiv class=\"skfl2-deal-tag\"\u003eFlash Deal · Extra Savings for the First 10 Orders\u003c\/div\u003e\n    \u003cdiv class=\"skfl2-deal-title\"\u003eGet Everything You Need to Run It, and Save $130.50\u003c\/div\u003e\n    \u003cp class=\"skfl2-deal-lead\"\u003eYou'll need the Starter Kit to fire up your ST-FL2. Order both together and the first 10 customers save the most.\u003c\/p\u003e\n\n    \u003cdiv class=\"skfl2-plans\"\u003e\n      \u003cdiv class=\"skfl2-plan skfl2-plan-best\"\u003e\n        \u003cdiv class=\"skfl2-plan-flag\"\u003eBest for Beginners\u003c\/div\u003e\n        \u003cdiv class=\"skfl2-plan-name\"\u003eEngine + Starter Kit\u003c\/div\u003e\n        \u003cdiv class=\"skfl2-plan-line\"\u003e\n\u003cspan\u003eST-FL2 Engine with code \u003cb\u003eE50\u003c\/b\u003e\u003c\/span\u003e\u003cspan\u003e\u003cs\u003e$399.99\u003c\/s\u003e \u003cb\u003e$349.99\u003c\/b\u003e\u003c\/span\u003e\n\u003c\/div\u003e\n        \u003cdiv class=\"skfl2-plan-line\"\u003e\n\u003cspan\u003eStarter Kit with code \u003cb\u003eM2026\u003c\/b\u003e\u003c\/span\u003e\u003cspan\u003e\u003cs\u003e$109.99\u003c\/s\u003e \u003cb\u003e$98.99\u003c\/b\u003e\u003c\/span\u003e\n\u003c\/div\u003e\n        \u003cdiv class=\"skfl2-plan-total\"\u003e\n\u003cspan\u003eYou pay at checkout\u003c\/span\u003e\u003cspan\u003e$448.98\u003c\/span\u003e\n\u003c\/div\u003e\n        \u003cdiv class=\"skfl2-plan-back\"\u003e\n          \u003cb\u003eFirst 10 orders get money back after delivery:\u003c\/b\u003e\n          \u003cdiv class=\"skfl2-plan-line\"\u003e\n\u003cspan\u003e$20 back on the engine\u003c\/span\u003e\u003cspan\u003e−$20.00\u003c\/span\u003e\n\u003c\/div\u003e\n          \u003cdiv class=\"skfl2-plan-line\"\u003e\n\u003cspan\u003eHalf of what you paid for the Starter Kit\u003c\/span\u003e\u003cspan\u003e−$49.50\u003c\/span\u003e\n\u003c\/div\u003e\n        \u003c\/div\u003e\n        \u003cdiv class=\"skfl2-plan-total\"\u003e\n\u003cspan\u003eYour final cost\u003c\/span\u003e\u003cspan\u003e$379.48\u003c\/span\u003e\n\u003c\/div\u003e\n        \u003cdiv class=\"skfl2-plan-save\"\u003eYou save $130.50 and get a complete, ready-to-run setup\u003c\/div\u003e\n        \u003ca class=\"skfl2-btn skfl2-btn-full\" href=\"https:\/\/www.stirlingkit.com\/products\/starter-kit-for-semto-st-fl2-2-cylinder-4-stroke-engine-model-kits\"\u003eAdd the Starter Kit\u003c\/a\u003e\n      \u003c\/div\u003e\n\n      \u003cdiv class=\"skfl2-plan\"\u003e\n        \u003cdiv class=\"skfl2-plan-name\"\u003eEngine Only\u003c\/div\u003e\n        \u003cdiv class=\"skfl2-plan-line\"\u003e\n\u003cspan\u003eWith code \u003cb\u003eE50\u003c\/b\u003e\u003c\/span\u003e\u003cspan\u003e\u003cs\u003e$399.99\u003c\/s\u003e \u003cb\u003e$349.99\u003c\/b\u003e\u003c\/span\u003e\n\u003c\/div\u003e\n        \u003cdiv class=\"skfl2-plan-line\"\u003e\n\u003cspan\u003e$20 back after delivery (first 10 orders)\u003c\/span\u003e\u003cspan\u003e−$20.00\u003c\/span\u003e\n\u003c\/div\u003e\n        \u003cdiv class=\"skfl2-plan-total\"\u003e\n\u003cspan\u003eYour final cost\u003c\/span\u003e\u003cspan\u003e$329.99\u003c\/span\u003e\n\u003c\/div\u003e\n        \u003cdiv class=\"skfl2-plan-save skfl2-plan-warn\"\u003eHeads-up: the engine can't run without the Starter Kit parts.\u003c\/div\u003e\n      \u003c\/div\u003e\n    \u003c\/div\u003e\n\n    \u003cdiv class=\"skfl2-how\"\u003e\n      \u003cb\u003eHow to claim your deal\u003c\/b\u003e\n      \u003col\u003e\n        \u003cli\u003eAdd this engine and the \u003ca href=\"https:\/\/www.stirlingkit.com\/products\/starter-kit-for-semto-st-fl2-2-cylinder-4-stroke-engine-model-kits\"\u003eStarter Kit\u003c\/a\u003e to your cart.\u003c\/li\u003e\n        \u003cli\u003eAt checkout, enter code \u003cspan class=\"skfl2-code\"\u003eE50\u003c\/span\u003e for $50 off the engine and code \u003cspan class=\"skfl2-code\"\u003eM2026\u003c\/span\u003e for 10% off the Starter Kit.\u003c\/li\u003e\n        \u003cli\u003eIf yours is one of the first 10 orders, we'll refund $20 plus half of your Starter Kit price to your original payment method once your order is delivered. You don't need to do anything else.\u003c\/li\u003e\n      \u003c\/ol\u003e\n    \u003c\/div\u003e\n\n    \u003cp class=\"skfl2-deal-note\"\u003eMissed the first 10? With codes E50 and M2026, you still save $61 on the bundle.\u003c\/p\u003e\n  \u003c\/div\u003e\n\n  \u003ch2\u003eNew to Engines? You'll Feel at Home\u003c\/h2\u003e\n  \u003cdiv class=\"skfl2-why\"\u003e\n    \u003cdiv\u003e\n\u003cb\u003eFewer things to adjust\u003c\/b\u003e\u003cp\u003eA single carburetor feeds both cylinders, so you set one mixture and learn how the engine responds.\u003c\/p\u003e\n\u003c\/div\u003e\n    \u003cdiv\u003e\n\u003cb\u003eEasy, reliable starting\u003c\/b\u003e\u003cp\u003eElectric start plus the 3-in-1 starter\/ignition module: connect the battery, press the button.\u003c\/p\u003e\n\u003c\/div\u003e\n    \u003cdiv\u003e\n\u003cb\u003eCooling handled for you\u003c\/b\u003e\u003cp\u003eThe built-in water pump circulates coolant automatically. No extra pump to set up.\u003c\/p\u003e\n\u003c\/div\u003e\n    \u003cdiv\u003e\n\u003cb\u003eOne kit for all the running parts\u003c\/b\u003e\u003cp\u003eThe Starter Kit brings the ignition, glow plugs, fuel and cooling parts together, so you don't have to hunt for compatible pieces.\u003c\/p\u003e\n\u003c\/div\u003e\n  \u003c\/div\u003e\n\n  \u003ch3 class=\"skfl2-steps-title\"\u003eYour First Start in 4 Easy Steps\u003c\/h3\u003e\n  \u003col class=\"skfl2-steps\"\u003e\n    \u003cli\u003e\n\u003cb\u003eBuild the engine.\u003c\/b\u003e Follow the build video and the manual. The basic tool is included.\u003c\/li\u003e\n    \u003cli\u003e\n\u003cb\u003eFit the Starter Kit.\u003c\/b\u003e Install the glow plugs, fuel tank and line, water tank and pipes, and wire up the 3-in-1 module.\u003c\/li\u003e\n    \u003cli\u003e\n\u003cb\u003eAdd battery and fuel.\u003c\/b\u003e Use an 11.1V 3S LiPo with a T-plug and 25% nitro fuel.\u003c\/li\u003e\n    \u003cli\u003e\n\u003cb\u003ePress start.\u003c\/b\u003e Then fine-tune the single carburetor as the engine warms up.\u003c\/li\u003e\n  \u003c\/ol\u003e\n\n  \u003ch2\u003eWhat You'll Receive \u0026amp; What You'll Need\u003c\/h2\u003e\n  \u003cdiv class=\"skfl2-box\"\u003e\n    \u003cp\u003eYou're getting the \u003cb\u003eKIT version\u003c\/b\u003e, so you build the engine yourself. The parts that make it run come in the Starter Kit. A quick check now means you'll have everything ready the day your engine is finished.\u003c\/p\u003e\n    \u003cdiv class=\"skfl2-cols\"\u003e\n      \u003cdiv\u003e\n        \u003ch3\u003eIn the box\u003c\/h3\u003e\n        \u003cul\u003e\n          \u003cli\u003eST-FL2 engine kit ×1\u003c\/li\u003e\n          \u003cli\u003eBasic installation tool ×1\u003c\/li\u003e\n          \u003cli\u003eInstruction manual ×1\u003c\/li\u003e\n        \u003c\/ul\u003e\n      \u003c\/div\u003e\n      \u003cdiv\u003e\n        \u003ch3\u003eYou'll also need\u003c\/h3\u003e\n        \u003cul\u003e\n          \u003cli\u003eStarter \/ ignition \/ power module, F-type glow plugs ×2, fuel tank and fuel line, water tank and water pipes: all in the \u003ca href=\"https:\/\/www.stirlingkit.com\/products\/starter-kit-for-semto-st-fl2-2-cylinder-4-stroke-engine-model-kits\"\u003eST-FL2 Starter Kit\u003c\/a\u003e\n\u003c\/li\u003e\n          \u003cli\u003e11.1V 3S LiPo battery with T-plug\u003c\/li\u003e\n          \u003cli\u003e25% nitro fuel\u003c\/li\u003e\n          \u003cli\u003eA mounting base or stand for your setup\u003c\/li\u003e\n        \u003c\/ul\u003e\n      \u003c\/div\u003e\n    \u003c\/div\u003e\n    \u003ca class=\"skfl2-btn\" href=\"https:\/\/www.stirlingkit.com\/products\/starter-kit-for-semto-st-fl2-2-cylinder-4-stroke-engine-model-kits\"\u003eShop the Starter Kit\u003c\/a\u003e\n  \u003c\/div\u003e\n\n  \u003ch2\u003eSee How You'll Build It\u003c\/h2\u003e\n  \u003cp\u003eNot sure if you can do it? Watch the whole build first. You'll follow the same steps with your own kit.\u003c\/p\u003e\n  \u003cdiv class=\"skfl2-video\"\u003e\n    \u003ciframe src=\"https:\/\/www.youtube.com\/embed\/XT0mV5xlkCQ\" title=\"SEMTO ST-FL2 engine assembly\" loading=\"lazy\" allow=\"accelerometer; encrypted-media; gyroscope; picture-in-picture\" allowfullscreen\u003e\u003c\/iframe\u003e\n  \u003c\/div\u003e\n\n  \u003ch2\u003eWhat You'll Love About It\u003c\/h2\u003e\n  \u003cdiv class=\"skfl2-feat\"\u003e\n    \u003cdiv\u003e\n\u003cb\u003eReal SOHC engine layout.\u003c\/b\u003e CNC-machined aluminum with a sandblasted, anodized finish. The single overhead cam layout mirrors a full-size automotive engine.\u003c\/div\u003e\n    \u003cdiv\u003e\n\u003cb\u003eEasy to tune.\u003c\/b\u003e One carburetor and an adjustable cam system mean there's only one mixture to set while you learn how the engine responds.\u003c\/div\u003e\n    \u003cdiv\u003e\n\u003cb\u003eElectric start, built-in cooling.\u003c\/b\u003e A 480 brushed starter motor spins it up at the push of a button, and the integrated centrifugal water pump keeps temperatures in check.\u003c\/div\u003e\n    \u003cdiv\u003e\n\u003cb\u003eRoom for RC projects.\u003c\/b\u003e The compact 8.6cc package leaves space to add a clutch and transmission for 1\/8-scale RC builds and custom drivetrains.\u003c\/div\u003e\n    \u003cdiv\u003e\n\u003cb\u003eLearn by building.\u003c\/b\u003e Assembling it yourself shows exactly how a four-stroke engine works: intake, compression, power, exhaust. A good hands-on project for STEM learning.\u003c\/div\u003e\n    \u003cdiv\u003e\n\u003cb\u003eDisplay, run, or modify.\u003c\/b\u003e Use it as a running bench engine, a desktop collection piece, or the heart of your next RC conversion.\u003c\/div\u003e\n  \u003c\/div\u003e\n\n  \u003ch2\u003eSpecifications\u003c\/h2\u003e\n  \u003cdetails class=\"skfl2-specs\"\u003e\n    \u003csummary\u003eView full specifications\u003c\/summary\u003e\n    \u003cdiv\u003e\n  \u003ctable class=\"skfl2-table\"\u003e\n    \u003ctr\u003e\n\u003cth\u003eBrand \/ Model\u003c\/th\u003e\n\u003ctd\u003eSEMTO ENGINE ST-FL2\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003cth\u003eVersion\u003c\/th\u003e\n\u003ctd\u003eKIT (assembly required)\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003cth\u003eEngine type\u003c\/th\u003e\n\u003ctd\u003eNitro internal combustion, four-stroke\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003cth\u003eCylinders\u003c\/th\u003e\n\u003ctd\u003eInline twin\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003cth\u003eDisplacement\u003c\/th\u003e\n\u003ctd\u003e8.6cc (2 × 4.3cc)\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003cth\u003eBore × stroke\u003c\/th\u003e\n\u003ctd\u003e18.00 mm × 17.00 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003cth\u003eValve train\u003c\/th\u003e\n\u003ctd\u003eSingle overhead camshaft (SOHC)\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003cth\u003ePower\u003c\/th\u003e\n\u003ctd\u003e1.2 HP\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003cth\u003eRPM range\u003c\/th\u003e\n\u003ctd\u003e3,000–20,000 rpm\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003cth\u003eCarburetor\u003c\/th\u003e\n\u003ctd\u003eSingle\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003cth\u003eCooling\u003c\/th\u003e\n\u003ctd\u003eWater cooling, built-in centrifugal water pump\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003cth\u003eLubrication\u003c\/th\u003e\n\u003ctd\u003eMixed \/ oil-mist lubrication\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003cth\u003eStarting\u003c\/th\u003e\n\u003ctd\u003eElectric start (480 brushed motor)\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003cth\u003eGlow plugs\u003c\/th\u003e\n\u003ctd\u003eF-type ×2 (included in Starter Kit)\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003cth\u003eFuel\u003c\/th\u003e\n\u003ctd\u003e25% nitro fuel\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003cth\u003eMaterial\u003c\/th\u003e\n\u003ctd\u003eCNC-machined aluminum, anodized\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003cth\u003eEngine size\u003c\/th\u003e\n\u003ctd\u003e11.31 × 9.15 × 10.34 cm\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003cth\u003eEngine weight\u003c\/th\u003e\n\u003ctd\u003e900 g\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003cth\u003ePackage size \/ weight\u003c\/th\u003e\n\u003ctd\u003e14.5 × 11 × 11.2 cm \/ 1,400 g\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003cth\u003eRecommended age\u003c\/th\u003e\n\u003ctd\u003e16+\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003c\/table\u003e\n    \u003c\/div\u003e\n  \u003c\/details\u003e\n\n  \u003ch2\u003eFAQ\u003c\/h2\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eHow does the flash deal work?\u003c\/summary\u003e\n    \u003cdiv\u003e\n      \u003cp\u003e\u003cb\u003eEngine:\u003c\/b\u003e enter code \u003cb\u003eE50\u003c\/b\u003e at checkout and you pay $349.99 instead of $399.99. The code works on the engine only.\u003c\/p\u003e\n      \u003cp\u003e\u003cb\u003eStarter Kit:\u003c\/b\u003e enter code \u003cb\u003eM2026\u003c\/b\u003e at checkout and you pay $98.99 instead of $109.99.\u003c\/p\u003e\n      \u003cp\u003e\u003cb\u003eFirst 10 orders:\u003c\/b\u003e once your order is delivered, we refund $20 for the engine, plus half of what you paid for the Starter Kit (about $49.50), to your original payment method.\u003c\/p\u003e\n      \u003cp\u003e\u003cb\u003eExample:\u003c\/b\u003e buy both and you pay $448.98 at checkout. If you're one of the first 10, you get $69.50 back, so the whole setup costs you $379.48.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/details\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eWill the engine run straight out of the box?\u003c\/summary\u003e\n    \u003cdiv\u003e\u003cp\u003eNo. This is a KIT version that you assemble, and the ignition, fuel and cooling parts are sold separately. The ST-FL2 Starter Kit covers those parts. You will also need an 11.1V 3S LiPo battery with a T-plug and 25% nitro fuel.\u003c\/p\u003e\u003c\/div\u003e\n  \u003c\/details\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eIs this a good first engine?\u003c\/summary\u003e\n    \u003cdiv\u003e\u003cp\u003eYes. The ST-FL2 is one of our recommended first engines. It has a single carburetor to tune, push-button electric start, built-in water cooling, and a full assembly video to follow, so you can focus on learning how a four-stroke works rather than fighting the setup. Take your time with the manual during assembly and the first runs. See more starter options in our \u003ca href=\"https:\/\/www.stirlingkit.com\/collections\/engine-model-kits-for-beginners\"\u003ebeginner engine collection\u003c\/a\u003e.\u003c\/p\u003e\u003c\/div\u003e\n  \u003c\/details\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eCan I put it in an RC car?\u003c\/summary\u003e\n    \u003cdiv\u003e\u003cp\u003eIt is designed with RC use in mind and leaves room for a clutch and transmission, which suits 1\/8-scale builds. The clutch, transmission and mounts are not included, and fitting depends on your chassis.\u003c\/p\u003e\u003c\/div\u003e\n  \u003c\/details\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eWhere can I find the manual?\u003c\/summary\u003e\n    \u003cdiv\u003e\u003cp\u003eA printed manual is in the box. You can also check our \u003ca href=\"https:\/\/www.stirlingkit.com\/pages\/stirlingkit-instruction-manual\"\u003eDownload Manual\u003c\/a\u003e page.\u003c\/p\u003e\u003c\/div\u003e\n  \u003c\/details\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eSafety notes\u003c\/summary\u003e\n    \u003cdiv\u003e\n      \u003cul\u003e\n        \u003cli\u003eRecommended for ages 16+. Younger builders should work with an adult.\u003c\/li\u003e\n        \u003cli\u003eRun the engine outdoors or in a well-ventilated area, away from open flames.\u003c\/li\u003e\n        \u003cli\u003eNitro fuel is flammable. Store it sealed, away from heat and out of reach of children.\u003c\/li\u003e\n        \u003cli\u003eThe cylinder head and exhaust get hot during running. Let the engine cool before touching it.\u003c\/li\u003e\n      \u003c\/ul\u003e\n    \u003c\/div\u003e\n  \u003c\/details\u003e\n\n\u003c\/div\u003e","brand":"Stirlingkit","offers":[{"title":"Default Title","offer_id":67596828311765,"sku":null,"price":399.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0134\/7446\/3808\/files\/semto-st-fl2-8-6cc-2-cylinder-engine-50-off.jpg?v=1792058388"},{"product_id":"starter-kit-for-semto-st-fl2-2-cylinder-4-stroke-engine-model-kits","title":"Starter Kit for SEMTO ST-FL2 2 Cylinder 4 Stroke Engine Model Kits","description":"\u003cstyle\u003e\n.skfl2s{font-family:inherit!important;color:#222!important;line-height:1.6!important;max-width:1000px;margin:0 auto!important;font-size:15px!important}\n.skfl2s *{box-sizing:border-box!important}\n.skfl2s h2{font-size:20px!important;margin:26px 0 12px!important;padding-left:10px!important;border-left:4px solid 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12px!important;margin:0!important}\n.skfl2s-qty{flex:0 0 38px!important;text-align:center!important;background:#111!important;color:#fff!important;font-weight:800!important;font-size:13px!important;border-radius:4px!important;padding:3px 0!important}\n.skfl2s-list b{color:#111!important}\n.skfl2s-list small{display:block!important;color:#666!important;font-size:13px!important}\n.skfl2s-need{border:2px solid #EA5504!important;border-radius:8px!important;padding:12px 16px!important}\n.skfl2s-need ul,.skfl2s ol{margin:0!important;padding-left:20px!important}\n.skfl2s li{margin:0 0 6px!important}\n.skfl2s details{border:1px solid #e3e3e3!important;border-radius:6px!important;margin:0 0 8px!important;background:#fff!important}\n.skfl2s summary{cursor:pointer!important;padding:12px 14px!important;font-weight:600!important;color:#111!important;list-style:none!important}\n.skfl2s summary::-webkit-details-marker{display:none!important}\n.skfl2s summary::after{content:\"+\"!important;float:right!important;color:#EA5504!important;font-weight:700!important}\n.skfl2s details[open] summary::after{content:\"\\2212\"!important}\n.skfl2s details\u003ediv{padding:0 14px 12px!important;font-size:14px!important}\n.skfl2s details ul{padding-left:18px!important;margin:0 0 8px!important}\n.skfl2s-video{position:relative!important;width:100%!important;aspect-ratio:16\/9!important;border-radius:10px!important;overflow:hidden!important;background:#000!important;margin:0 0 10px!important}\n.skfl2s-video iframe{position:absolute!important;top:0!important;left:0!important;width:100%!important;height:100%!important;border:0!important}\n@media(min-width:750px){\n.skfl2s-list{grid-template-columns:1fr 1fr!important}\n}\n\u003c\/style\u003e\n\n\u003cdiv class=\"skfl2s\"\u003e\n\n  \u003c!-- FLASH DEAL --\u003e\n  \u003cdiv class=\"skfl2s-deal\"\u003e\n    \u003cdiv class=\"skfl2s-deal-tag\"\u003eFlash Deal\u003c\/div\u003e\n    \u003cp class=\"skfl2s-price\"\u003e\u003cb\u003e$98.99\u003c\/b\u003e\u003cs\u003e$109.99\u003c\/s\u003e · 10% off with code \u003cb\u003eM2026\u003c\/b\u003e at checkout\u003c\/p\u003e\n    \u003cdiv class=\"skfl2s-bonus\"\u003e\n\u003cb\u003eFirst 10 orders:\u003c\/b\u003e we refund half of what you paid (about $49.50) once your order is delivered.\u003c\/div\u003e\n    \u003cp class=\"skfl2s-deal-note\"\u003eGetting the engine too? Use code \u003cb\u003eE50\u003c\/b\u003e for $50 off the \u003ca href=\"https:\/\/www.stirlingkit.com\/products\/semto-st-fl2-8-6cc-2-cylinder-engine-diy-kits-nitro-4-stroke-model-engine-for-beginner\"\u003eSEMTO ST-FL2 engine\u003c\/a\u003e.\u003c\/p\u003e\n  \u003c\/div\u003e\n\n  \u003cp class=\"skfl2s-intro\"\u003e\u003cb\u003eEverything your SEMTO ST-FL2 needs to run, in one box.\u003c\/b\u003e The ST-FL2 engine kit doesn't include its starting, ignition, fuel or cooling parts. This kit has them all, so you just add a battery and fuel.\u003c\/p\u003e\n\n  \u003ch2\u003eWhat's Included\u003c\/h2\u003e\n  \u003cul class=\"skfl2s-list\"\u003e\n    \u003cli\u003e\n\u003cspan class=\"skfl2s-qty\"\u003e×1\u003c\/span\u003e\u003cspan\u003e\u003cb\u003e3-in-1 Starter \/ Ignition \/ Power Module\u003c\/b\u003e\u003csmall\u003eStarts the engine and powers the glow plugs. Push-button start.\u003c\/small\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n    \u003cli\u003e\n\u003cspan class=\"skfl2s-qty\"\u003e×2\u003c\/span\u003e\u003cspan\u003e\u003cb\u003eF-Type Glow Plug\u003c\/b\u003e\u003csmall\u003eOne for each cylinder.\u003c\/small\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n    \u003cli\u003e\n\u003cspan class=\"skfl2s-qty\"\u003e×1\u003c\/span\u003e\u003cspan\u003e\u003cb\u003e75 ml Fuel Tank\u003c\/b\u003e\u003csmall\u003eHolds your nitro fuel.\u003c\/small\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n    \u003cli\u003e\n\u003cspan class=\"skfl2s-qty\"\u003e×1\u003c\/span\u003e\u003cspan\u003e\u003cb\u003eFuel Line, 50 cm\u003c\/b\u003e\u003csmall\u003eCut to the length you need.\u003c\/small\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n    \u003cli\u003e\n\u003cspan class=\"skfl2s-qty\"\u003e×1\u003c\/span\u003e\u003cspan\u003e\u003cb\u003eWater Tank \u0026amp; Water Pipe Kit\u003c\/b\u003e\u003csmall\u003eHolds and carries the coolant.\u003c\/small\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n    \u003cli\u003e\n\u003cspan class=\"skfl2s-qty\"\u003e×1\u003c\/span\u003e\u003cspan\u003e\u003cb\u003eRadiator Support Holder Kit\u003c\/b\u003e\u003csmall\u003eMounts the cooling setup.\u003c\/small\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003ch2\u003eYou'll Also Need\u003c\/h2\u003e\n  \u003cdiv class=\"skfl2s-need\"\u003e\n    \u003cul\u003e\n      \u003cli\u003eThe \u003ca href=\"https:\/\/www.stirlingkit.com\/products\/semto-st-fl2-8-6cc-2-cylinder-engine-diy-kits-nitro-4-stroke-model-engine-for-beginner\"\u003eSEMTO ST-FL2 engine\u003c\/a\u003e (sold separately)\u003c\/li\u003e\n      \u003cli\u003eAn 11.1V 3S LiPo battery with a T-plug\u003c\/li\u003e\n      \u003cli\u003e25% nitro fuel\u003c\/li\u003e\n    \u003c\/ul\u003e\n  \u003c\/div\u003e\n\n  \u003ch2\u003eEasy Wiring\u003c\/h2\u003e\n  \u003col\u003e\n    \u003cli\u003eFit the two ignition caps onto the glow plugs.\u003c\/li\u003e\n    \u003cli\u003eConnect the positive (+) and negative (−) wires to the starter motor.\u003c\/li\u003e\n    \u003cli\u003eConnect the ground wire to the engine's metal casing.\u003c\/li\u003e\n    \u003cli\u003ePlug in your battery last, then press the button to start.\u003c\/li\u003e\n  \u003c\/ol\u003e\n\n  \u003ch2\u003eSee How It All Goes Together\u003c\/h2\u003e\n  \u003cp\u003eWatch the full ST-FL2 build, including where each Starter Kit part fits.\u003c\/p\u003e\n  \u003cdiv class=\"skfl2s-video\"\u003e\n    \u003ciframe src=\"https:\/\/www.youtube.com\/embed\/XT0mV5xlkCQ\" title=\"SEMTO ST-FL2 engine assembly\" loading=\"lazy\" allow=\"accelerometer; encrypted-media; gyroscope; picture-in-picture\" allowfullscreen\u003e\u003c\/iframe\u003e\n  \u003c\/div\u003e\n  \u003ca class=\"skfl2s-btn\" href=\"https:\/\/www.stirlingkit.com\/products\/semto-st-fl2-8-6cc-2-cylinder-engine-diy-kits-nitro-4-stroke-model-engine-for-beginner\"\u003eGet the ST-FL2 Engine\u003c\/a\u003e\n\n  \u003ch2\u003eSpecifications\u003c\/h2\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eView part specifications\u003c\/summary\u003e\n    \u003cdiv\u003e\n      \u003cp\u003e\u003cb\u003e3-in-1 Module\u003c\/b\u003e (SKU 3761918)\u003c\/p\u003e\n      \u003cul\u003e\n        \u003cli\u003ePower: 11.1V 3S LiPo, T-plug\u003c\/li\u003e\n        \u003cli\u003eStart: brushed drive, push-button\u003c\/li\u003e\n        \u003cli\u003eSize: 10 × 6 × 3 cm · Weight: 75 g\u003c\/li\u003e\n      \u003c\/ul\u003e\n      \u003cp\u003e\u003cb\u003eF-Type Glow Plug ×2\u003c\/b\u003e (SKU 3752045)\u003c\/p\u003e\n      \u003cul\u003e\n        \u003cli\u003eMaterial: metal · Threaded installation\u003c\/li\u003e\n        \u003cli\u003eSize: 4 × 3 × 1 cm · Weight: 10 g each\u003c\/li\u003e\n      \u003c\/ul\u003e\n      \u003cp\u003e\u003cb\u003eFuel Tank\u003c\/b\u003e (SKU 3378538)\u003c\/p\u003e\n      \u003cul\u003e\u003cli\u003ePlastic, 75 ml, 30 g\u003c\/li\u003e\u003c\/ul\u003e\n      \u003cp\u003e\u003cb\u003eFuel Line\u003c\/b\u003e (SKU 3378539)\u003c\/p\u003e\n      \u003cul\u003e\u003cli\u003eSilicone, 3 mm inner diameter, 50 cm, 10 g\u003c\/li\u003e\u003c\/ul\u003e\n      \u003cp\u003e\u003cb\u003eWater Tank \u0026amp; Pipe Kit\u003c\/b\u003e (SKU 3378542)\u003c\/p\u003e\n      \u003cul\u003e\u003cli\u003eAcrylic, 40 g\u003c\/li\u003e\u003c\/ul\u003e\n      \u003cp\u003e\u003cb\u003eRadiator Support Holder Kit\u003c\/b\u003e (SKU 3378541)\u003c\/p\u003e\n      \u003cul\u003e\u003cli\u003e100 g\u003c\/li\u003e\u003c\/ul\u003e\n      \u003cp\u003eRecommended age: 16+\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/details\u003e\n\n  \u003cdetails\u003e\n    \u003csummary\u003eWill it fit other engines?\u003c\/summary\u003e\n    \u003cdiv\u003e\u003cp\u003eThis kit is made for the SEMTO ST-FL2, and the 3-in-1 module is designed specifically for it. If you want to use single parts such as the glow plugs or fuel line on another engine, please check the sizes first.\u003c\/p\u003e\u003c\/div\u003e\n  \u003c\/details\u003e\n\n\u003c\/div\u003e","brand":"Stirlingkit","offers":[{"title":"Default Title","offer_id":67779393093845,"sku":"SK3761969","price":109.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0134\/7446\/3808\/files\/stirlingkit-starter-kit-for-semto-st-fl2-2-cylinder-4-stroke-engine-model-kits_18.jpg?v=1792045985"}],"url":"https:\/\/www.stirlingkit.com\/sv\/collections\/semto-st-fl2-engine-parts.oembed","provider":"Stirlingkit","version":"1.0","type":"link"}