{"product_id":"os-speed-91hz-r-3d-engine-18642-copy-1","title":"OS.MAX 55HZ-R ENGINE 15650","description":"\u003cp\u003eOS.MAX 55HZ-R ENGINE 15650\u003c\/p\u003e\n\u003cdiv\u003e\u003cstrong\u003e\u003cspan style=\"color: #008000;\"\u003eEploded view: \u003ca href=\"https:\/\/www.os-engines.co.jp\/english\/line_up\/engine\/heri\/img\/manual\/15650_1.pdf\" target=\"_blank\" title=\"Exploded view\" rel=\"noopener\"\u003eView\u003c\/a\u003e\u003c\/span\u003e\u003c\/strong\u003e\u003c\/div\u003e\n\u003cdiv\u003e\u003cstrong\u003e\u003cspan style=\"color: #008000;\"\u003eInstructions: \u003ca href=\"https:\/\/www.os-engines.co.jp\/english\/line_up\/engine\/heri\/img\/manual\/15650.pdf\" title=\"Manual\"\u003eManual\u003c\/a\u003e\u003c\/span\u003e\u003c\/strong\u003e\u003c\/div\u003e\n\u003cdiv\u003e\u003cstrong\u003e\u003cspan style=\"color: #008000;\"\u003eDimensions: \u003ca href=\"https:\/\/www.os-engines.co.jp\/line_up\/engine\/heri\/img\/heri\/pdf\/15650_1.pdf\"\u003eSize\u003c\/a\u003e\u003c\/span\u003e\u003c\/strong\u003e\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cstrong\u003e\u003cspan style=\"color: #008000;\"\u003e\u003c\/span\u003e\u003c\/strong\u003e\u003cbr\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cp\u003e\u003cspan\u003e\u003cstrong\u003eFeatures:\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eThe latest DRS system (Demand Regulator System) uses a crankcase pressure tap-off to pressurise the fuel tank via a one-way valve. The pressurised fuel is then carefully regulated at the carburettor to provide the optimum mixture no matter what demands are placed on it. This is done by using the negative pressure in the carburettor Venturi as part of the regulation system.\u003c\/p\u003e\n\u003cp\u003eThe carburettor itself has three mixture controls for low\/mid and high speed settings. Once set for the fuel demands of your model\/type of fuel and muffler, there is rarely any need to change those settings again.\u003c\/p\u003e\n\u003cp\u003eThe main mechanics of the engine itself are the same as the regular Max 55HZ.\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e\u003cstrong\u003eTechnical Specifications:\u003c\/strong\u003e\u003c\/span\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth\u003eDisplacement\u003c\/th\u003e\n\u003ctd\u003e8.93 cc\/0.55 cu.in.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eBore\u003c\/th\u003e\n\u003ctd\u003e23.0 mm\/0.91 in.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eStroke\u003c\/th\u003e\n\u003ctd\u003e21.5 mm\/0.85 in.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eOutput\u003c\/th\u003e\n\u003ctd\u003e2.1 ps\/2.07 hp\/17,000 r.p.m.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003ePractical RPM range\u003c\/th\u003e\n\u003ctd\u003e2,000-20,000 r.p.m.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eEngine Weight\u003c\/th\u003e\n\u003ctd\u003e429.0 g\/15.13 oz\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003e\u003cimg alt=\"\" src=\"https:\/\/www.rcjapan.net\/index.php?main_page=product_info\u0026amp;cPath=80_413_419\u0026amp;products_id=11904\" style=\"font-size: 0.875rem;\"\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e\u003cstrong\u003eContents of box:\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eOS 55HZ-R engine\u003c\/p\u003e\n\u003cp\u003eNo. 8 plug \u003c\/p\u003e\n\u003cp\u003eCheck Valve\u003c\/p\u003e\n\u003cp\u003eInstructions\u003c\/p\u003e\n\u003c\/div\u003e","brand":"OS","offers":[{"title":"Default Title","offer_id":56294674334081,"sku":"15650","price":284.99,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0951\/5047\/3601\/files\/55hzr.jpg?v=1789663278","url":"https:\/\/helihensonrc.co.uk\/products\/os-speed-91hz-r-3d-engine-18642-copy-1","provider":"Heli Henson RC","version":"1.0","type":"link"}