The Loncin G420F-EP5 spec as follows,

• Engine model – G420F-P
• Engine type – Single cylinder, 4-stroke,OHV with forced air cooling
• Shaft type – 1″ parallel shaft
• Net power hp / hW – 12 / 9 @ 3600rpm
• gross power hp / hW – 15 / 11.2 @ 3600rpm
• Net torque Nm – 26.5 @ 250rpm
• Bore x stroke mm – 90 x 66
• Displacement cc – 420
• Compression ratio – 8.3:1
• Oil capacity Ltr – 1.1
• Fuel consumption g/kW/h – <374
• Oil consumption g/kW/h – <6.8
• Idle speed – 1450 + 150
• Starting system – Electric / Recoil
• Noise <7m – 70-dBA
• Dimensions L x W x H mm – 450 x 405 x 443
• Net weight kg – 31