iLube® Engine SOLO 2-stroke, 4-port scavenging, Engine Displacement 81, Horsepower 4.0 / 5.45 ( at 9300 1/min), Sound Pressure Level dB(A) 98, Fuel Tank Capacity 0.9, Oil Tank Capacity 0.32 l, Decompression valve, Electronic Ignition, Weight 23 lbs