Coolinghead:The cooling heads are made lighter by making aditional holes in the cooling fins. This reduces the overall mass of the engine. Sleeve: The sleeve has 7 transfer ports and an exhaust with booster ports. The special shape and positioning of the ports, covered by a patent, improve the internal fluid-dynamics to obtain the maximum possible performance. Crankshaft: The Turbo SG crankshaft is made from high quality steel. Carburettor: This carburettor is made from plastic and have a sliding throttle valve. (reverse type). The ignition timing is controlled with these little rings of various thickness. To change the ignition timing you can add or remove a ring of a certain thickness. Technical Specifications: Displacement: 4,04 cc R.P.M. (max power): 37.500 RPM Bore x stroke: 17,10x17,60 mm Sleeve: 7 ports Rear ball bearings: steel Front ball bearings: steel Crankshaft: 14 mm - turbo Carburetor: plastic - 9 mm - slide Glowplug: Turbo (C6TGC) Exhaust position: rear Starting: - Weight: 374 g Fuel type: 25% nitro
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