Features Specifications: Yamaha YZF R15 Motorcycle  Displacement:  150cc  Engine Type:  4-Stroke  Engine type  Liquid-cooled, 4-stroke, SOHC, 4-valve  Cylinder arrangement  Single cylinder  Displacement  149 .8cc  Bore & Stroke  57×58.7mm  Compression ratio  10.4:1  Maximum power  17PS / 8,500rpm  Maximum torque  15 N.m / 7,500rpm  Starting system  Electric Start  Lubrication  wet sump  Engine oil capacity  1.0 liters  Fuel tank capacity  12 liters  Fuel supply system  Electronic fuel injection  Ignition system  T.C.I  Primary / Secondary reduction ratio  3.042 / 3.000  Clutch type  Constant-mesh wet multi-plate  Transmission type  Return type 6-speed  Gear ratios  1st=2.833, 2nd1.875, 3rd:=1.364,  4th=1.143, 5th=0.957, 6th=0.84