155cc single-cylinder liquid-cooled, fuel-injected, 4-valve engine with Variable Valve Actuation (VVA) 199.6cc, single-cylinder air-cooled, 2-valve fuel-injected engine with oil cooler The Yamaha ...

The Yamaha WR 155 R is powered by the same BS6-compliant motor as seen on the Yamaha R15 and the MT-15. Engine is among the most expensive aspects of a bike. Since the powerplant is already ...