{"product_id":"stihl-ms-500i-petrol-chainsaw","title":"MS 500i Petrol Chainsaw","description":"\u003ch1\u003eSTIHL MS 500i Petrol Chainsaw - The World's First Fuel-Injected Professional Chainsaw\u003c\/h1\u003e\n\u003cdiv style=\"margin:24px 0; padding:26px; border:1px solid #e5e7eb; border-left:3px solid #f47a20; border-radius:20px; background:#f7f7f7; font-family:-apple-system,BlinkMacSystemFont,'Segoe UI',Roboto,Helvetica,Arial,sans-serif;\"\u003e\n\u003cdiv style=\"display:flex; align-items:center; margin-bottom:8px;\"\u003e\n\u003cspan style=\"display:inline-block; width:6px; height:6px; border-radius:50%; background:#f47a20; margin-right:10px;\"\u003e\u003c\/span\u003e\u003ch3 style=\"margin:0; font-size:18px; font-weight:600; color:#1c1f27; letter-spacing:-0.01em;\"\u003eFree Spare Chain Available\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cp style=\"margin:0 0 12px; font-size:14px; line-height:1.5; color:#f47a20; font-weight:700;\"\u003eWorth £20-£40 depending on model\u003c\/p\u003e\n\u003cp style=\"margin:0 0 16px; font-size:14px; line-height:1.8; color:#4b5563;\"\u003eWhen you add this STIHL chainsaw to your cart, your free matching chain will appear automatically. Simply click \u003cstrong\u003e\"Add Free Item\"\u003c\/strong\u003e in the cart to include it with your order.\u003c\/p\u003e\n\u003cul style=\"margin:0 0 16px 18px; padding:0; font-size:13.5px; line-height:1.85; color:#4b5563;\"\u003e\n\u003cli\u003eMatching chain for this model\u003c\/li\u003e\n\u003cli\u003eIdeal for quick swaps on the job\u003c\/li\u003e\n\u003cli\u003eHelps reduce downtime\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr style=\"border:none; border-top:1px solid #e5e7eb; margin:16px 0;\"\u003e\n\u003cp style=\"margin:0; font-size:12.5px; line-height:1.7; color:#6b7280;\"\u003eYour free chain will appear in the cart — just click \u003cstrong\u003e\"Add Free Item\"\u003c\/strong\u003e before checkout.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cp\u003eThe \u003cstrong\u003eSTIHL MS 500i\u003c\/strong\u003e is the world's first production chainsaw with electronically controlled fuel injection (STIHL Injection), delivering a 79.2cc engine producing 5.0kW (6.8hp) at just 6.3kg powerhead weight — a power-to-weight ratio of 1.24 kg\/kW. Designed for professional forestry contractors and tree surgeons tackling felling, bucking and delimbing, it adapts fuel delivery and ignition timing automatically to environmental conditions for consistent performance at any altitude or temperature.\u003c\/p\u003e\n\n\u003ch2\u003eKey Features \u0026amp; Benefits\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSTIHL Injection (i)\u003c\/strong\u003e — electronically controlled fuel metering, the first in any production chainsaw, for instant throttle response and consistent power regardless of temperature, altitude or fuel variance\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e5.0kW \/ 6.8hp engine\u003c\/strong\u003e — 79.2cc displacement delivering an outstanding 1.24 kg\/kW power-to-weight ratio\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e6.3kg powerhead weight\u003c\/strong\u003e — lightweight for its class, reducing fatigue during extended felling and bucking operations\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBar compatibility 40-90cm (16-36\")\u003c\/strong\u003e — suited to a wide range of timber diameters from processing to large-scale felling\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHD2 air filter\u003c\/strong\u003e — pre-separation and oil\/water-repellent material for extended engine protection in dusty forestry environments\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEmatic lubrication system\u003c\/strong\u003e — precise oil delivery reduces bar oil consumption by up to 50%\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eElastoStart and anti-vibration system\u003c\/strong\u003e — reduced pull resistance on start, advanced vibration dampening for all-day comfort\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTool-free fuel and oil caps\u003c\/strong\u003e for fast refuelling in the field\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSide-mounted chain tensioning\u003c\/strong\u003e for quick adjustments on site\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eTechnical Details\u003c\/h2\u003e\n\u003cdiv style=\"max-width:600px;background:#fff;border:1px solid #e5e5e5;border-radius:20px;box-shadow:0 2px 6px rgba(0,0,0,.03);overflow:hidden;\"\u003e\n\u003ctable style=\"width:100%;border-collapse:collapse;table-layout:fixed;\"\u003e\n\u003ccolgroup\u003e\n\u003ccol style=\"width:42%;\"\u003e\n\u003ccol style=\"width:58%;\"\u003e\n\u003c\/colgroup\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth style=\"background:#f8f8f8;font-weight:600;text-align:left;padding:18px 20px;font-size:14px;color:#111;border-bottom:1px solid #e5e5e5;\"\u003eDisplacement\u003c\/th\u003e\n\u003ctd style=\"padding:18px 20px;font-size:14px;line-height:1.5;color:#111;border-bottom:1px solid #e5e5e5;\"\u003e79.2cc\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth style=\"background:#f8f8f8;font-weight:600;text-align:left;padding:18px 20px;font-size:14px;color:#111;border-bottom:1px solid #e5e5e5;\"\u003ePower Output\u003c\/th\u003e\n\u003ctd style=\"padding:18px 20px;font-size:14px;line-height:1.5;color:#111;border-bottom:1px solid #e5e5e5;\"\u003e5.0kW (6.8hp)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth style=\"background:#f8f8f8;font-weight:600;text-align:left;padding:18px 20px;font-size:14px;color:#111;border-bottom:1px solid #e5e5e5;\"\u003ePower-to-Weight Ratio\u003c\/th\u003e\n\u003ctd style=\"padding:18px 20px;font-size:14px;line-height:1.5;color:#111;border-bottom:1px solid #e5e5e5;\"\u003e1.24 kg\/kW\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth style=\"background:#f8f8f8;font-weight:600;text-align:left;padding:18px 20px;font-size:14px;color:#111;border-bottom:1px solid #e5e5e5;\"\u003ePowerhead Weight\u003c\/th\u003e\n\u003ctd style=\"padding:18px 20px;font-size:14px;line-height:1.5;color:#111;border-bottom:1px solid #e5e5e5;\"\u003e6.3kg\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth style=\"background:#f8f8f8;font-weight:600;text-align:left;padding:18px 20px;font-size:14px;color:#111;border-bottom:1px solid #e5e5e5;\"\u003eRecommended Bar Length\u003c\/th\u003e\n\u003ctd style=\"padding:18px 20px;font-size:14px;line-height:1.5;color:#111;border-bottom:1px solid #e5e5e5;\"\u003e40-90cm (16-36\")\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth style=\"background:#f8f8f8;font-weight:600;text-align:left;padding:18px 20px;font-size:14px;color:#111;border-bottom:1px solid #e5e5e5;\"\u003eChain Pitch\u003c\/th\u003e\n\u003ctd style=\"padding:18px 20px;font-size:14px;line-height:1.5;color:#111;border-bottom:1px solid #e5e5e5;\"\u003e⅜\" RS3\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth style=\"background:#f8f8f8;font-weight:600;text-align:left;padding:18px 20px;font-size:14px;color:#111;border-bottom:1px solid #e5e5e5;\"\u003eFuel \/ Oil Tank\u003c\/th\u003e\n\u003ctd style=\"padding:18px 20px;font-size:14px;line-height:1.5;color:#111;border-bottom:1px solid #e5e5e5;\"\u003e785ml \/ 325ml\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth style=\"background:#f8f8f8;font-weight:600;text-align:left;padding:18px 20px;font-size:14px;color:#111;\"\u003eSound \/ Vibration\u003c\/th\u003e\n\u003ctd style=\"padding:18px 20px;font-size:14px;line-height:1.5;color:#111;\"\u003e106 dB(A) \/ 4.2-4.0 m\/s²\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\n\u003ch2\u003eWhy Choose the STIHL MS 500i?\u003c\/h2\u003e\n\u003cp\u003eThe MS 500i sits in the upper tier of the STIHL professional forestry range — above the MS 462 C-M and MS 261 C-M in both displacement and output. Its fuel injection system is what sets it apart from every other production chainsaw: instant throttle response with no flat spots, reliable cold-weather starting, and consistent power at altitude. For forestry contractors working long shifts across varied timber and terrain, the combination of 5.0kW output at 6.3kg powerhead weight and the 40-90cm bar range makes it exceptionally versatile. The MS 500i W variant adds heated handles for cold-climate operations.\u003c\/p\u003e\n\n\u003ch2\u003ePairs Well With\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003ca href=\"\/en-us\/collections\/chainsaw-chains\"\u003eReplacement Chainsaw Chains\u003c\/a\u003e — ⅜\" RS3 chains compatible with the MS 500i\u003c\/li\u003e\n\u003cli\u003e\n\u003ca href=\"\/en-us\/collections\/stihl-chainsaw-guide-bars\"\u003eChainsaw Guide Bars\u003c\/a\u003e — 40-90cm Rollomatic and Duromatic options for this model\u003c\/li\u003e\n\u003cli\u003e\n\u003ca href=\"\/en-us\/collections\/fuel-oil\"\u003e2-Stroke Oil and Fuel\u003c\/a\u003e — STIHL HP Ultra and MotoMix for fuel-injected engines\u003c\/li\u003e\n\u003cli\u003e\n\u003ca href=\"\/en-us\/collections\/filing-kits-guides-sharpening\"\u003eChain Sharpening Tools\u003c\/a\u003e — filing kits and bench sharpeners for ⅜\" RS chain\u003c\/li\u003e\n\u003cli\u003e\n\u003ca href=\"\/en-us\/collections\/chainsaw-clothing-ppe\"\u003eForestry PPE\u003c\/a\u003e — chainsaw trousers, helmets, gloves and boots for compliant felling work\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eAlso Known As\u003c\/h2\u003e\n\u003cp\u003eAlso searched for as: STIHL MS500i, fuel-injected STIHL chainsaw, STIHL Injection chainsaw, MS 500i forestry saw.\u003c\/p\u003e\n\n\u003ch2\u003eFAQs\u003c\/h2\u003e\n\u003cdetails\u003e\n\u003csummary\u003eWhat makes the MS 500i different from a standard carburettor chainsaw?\u003c\/summary\u003e\n\u003cp\u003eIt uses electronically controlled fuel injection rather than a carburettor, delivering instant throttle response, consistent power across all temperatures and altitudes, and removing the need for carburettor adjustment in the field.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eWhat is the difference between the MS 500i and the MS 500i W?\u003c\/summary\u003e\n\u003cp\u003eThe MS 500i W is identical in engine specification but adds electrically heated handles for cold-weather operation. Both share the same 79.2cc fuel-injected engine and 5.0kW output.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eWhat bar lengths are compatible with the MS 500i?\u003c\/summary\u003e\n\u003cp\u003eSTIHL recommend 40-90cm (16-36\") guide bars, using ⅜\" RS3 chain. Gustharts stocks compatible bars and chains.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eHow does the MS 500i compare to the MS 462 C-M?\u003c\/summary\u003e\n\u003cp\u003eThe MS 500i is larger at 79.2cc vs 72.2cc, produces more power (5.0kW vs 4.4kW), and adds fuel injection for instant response. The MS 462 C-M is lighter at 6kg vs 6.3kg and better suited where weight is the primary concern.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eIs the MS 500i suitable for chainsaw milling?\u003c\/summary\u003e\n\u003cp\u003eYes — its wide bar compatibility (up to 90cm) and high torque output make it well suited to Alaskan mill setups for processing large-diameter logs.\u003c\/p\u003e\n\u003c\/details\u003e","brand":"Stihl","offers":[{"title":"20\"","offer_id":45718179184884,"sku":"MS-1147 200 0000","price":1738.0,"currency_code":"USD","in_stock":true},{"title":"25\"","offer_id":45718179217652,"sku":"MS-1147 200 0001","price":1767.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0690\/6603\/1348\/files\/STIHL_MS_500i_Petrol_Chainsaw.jpg?v=1756818689","url":"https:\/\/www.gustharts.com\/en-us\/products\/stihl-ms-500i-petrol-chainsaw","provider":"Gustharts","version":"1.0","type":"link"}