Item/Model R4105P Type Four strokes, Water cooling, Inline, injecting combustion chamber Cylinder No.-Bore*Stroke(mm) 4-105*125 Total Displacement of Piston(L) 4.33 Pressure Ratio 17:1 Firing order 1-3-4-2 Air Intake Mode Naturally Aspirated Rated Working Coniditation 12h Output/Speed(kw/r/min) 48/2000 Highest Idling Speed(r/min) ≤2160 Lowest Idling Stable Speed(r/min) ≤600 Rated Working Condition Average Effective Pressure(Kpa) 665 Fuel Consumption Rate(g/kw.h)≤239 oil Consumption Rate(g/kw.h) ≤1.63 Exhaust Temperature(℃) ≤600 Crankshaft Rotating Direction Counter clockwise(Facing to the power output end) Cooling Mode Forced Water Cooling Lubricating Mode Compound type with pressure and splash Starting Mode Electric starting Net Mass(kg) 550