The famous NovaRossi 367 2008 is the ultimate racing engine for Off-Road. Its smooth acceleration increases the drivability and its new combustion chamber improves the reliability. 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 crankshaft has a special shape to reduce turbulence inside the crankcase. The front part was extended to improve the seal against fuel leaking. Combustion chamber: The combustion chamber is supported by an O-Ring which is placed between the combustion chamber and the crankcase to reduce vibration. Bearings: The outer diameter of the rear ballbearing is increased to 26mm, this improves the strength and lifespan Carburettor: The compsite carburettor is in "reverse" style and has a sliding throttle valve. Head: The cooling head is made lighter by making aditional holes in the cooling fins. This reduces the overall mass of the engine. Rear Cover: The rear cover presents a round shape to optimize the filling and reducing the dead spaces. The steel plate is to expand the lifespan of the conrod. Glowplug: The glowplug of engine is a Standard type glowplug. 7-port, true ABC construction piston sleeve 14.5mm steel SG style crankshaft Composite "reverse" type slide carburettor Rear exhaust Standard type glow plug Latest 2008/09 specification Displacement - 3.49cc (.21ci) Max power - 2.97HP RPM/Max power - 35,000 RPM Practical range - 6,000 - 40,700 RPM Bore x Stroke - 16.25mm x 16.80mm Number of ports - 7 Start type - Starterbox Recommended plug - C7G Fuel type - 25% nitro