... cylinder,4-stroke,air-cooled,direct injection,diesel engine Engine type Single cylinder,4-stroke,air-cooled,direct injection,diesel ... volume[L(gal.)] 2.5(0.55)Fuel consumption rate[g(ml)/kW.h] 1500rpm:280(333),3600rpm:288(342)Lubrication ... ,80 Series of single cylinder of the water cold diesel engine