FREERIDE 350: HIGH-TORQUE FOURSTROKE ENGINEvoltar à moto Benefício Anterior
Based on the successful power unit of the 350 EXC-F, the engine of the Freeride 350 has nevertheless been redesigned for the new vehicle concept. In so doing, the kickstarter has been dispensed with for the benefit of minimal weight and more compact dimensions and a new engine case has been developed in ultra-light, die-cast (instead of sand-cast) aluminium. By redimensioning the exhaust and airbox, the engineers consciously designed the engine for torque rather than race performance in order to retain as effective - i.e. high-traction and power-saving - engine characteristics as possible, above all in tough terrain.
DOHC CYLINDER HEAD
Four steel valves control the charge exchange process, guaranteeing highest levels of durability. They are actuated by means of two overhead camshafts and DLC-coated cam followers. The top engine speed is 10,000 1/min. With a respectable maximum output of 23 hp, the engine produces more than enough power to climb the steepest of slopes with the greatest of ease.
ENGINE MANAGEMENT SYSTEM (EMS)
The engine management system from Keihin with electronic fuel injection and 42 mm throttle body ensures spontaneous, powerful responsiveness and handling, as well as making a significant contribution to the low fuel consumption. Convenient temperature and altitude compensation, and the electronic cold-start enrichment are state of the art. Closed-loop lambda control is a prerequisite for the efficient reduction of exhaust emissions by the two catalytic converters. Additional engine characteristics can be activated with an optional map select switch.
A smoothly operated clutch with integrated hub damping and effective diaphragm spring makes it possible to keep the whole clutch package extremely compact and light. The clutch is equipped with a wear-free steel basket, 8 steel carrier lining discs and extremely heat-resistant friction linings. These are pre-tensioned by means of a diaphragm spring, substantially reducing the operating force required to pull the clutch. The hydraulic clutch actuation system from Formula was developed especially for the Freeride 350 and guarantees energy-saving and easily controllable modulation.
The 350 cm³ engine is activated with an electric starter that is well protected behind the cylinder and ensures reliable starting.