The new F70 is a further development of the fuel-efficient, high-torque F60, sharing the same displacement and stroke. The engine is lighter than any competitive four stroke or direct-injected two stroke motor in the
70-75 horsepower class, yet still punches well above its weight. Four valves per cylinder have dramatically increased this engine’s volumetric efficiency — the efficiency with which the engine can draw fuel and air in and push exhaust out of the cylinders — enabling the F70 to run at a higher 6300rpm.

www.yamaha-motor.com.au