RB20/RB28 Gasoline Engine 1)Robin Type 2)EPA/CE approved Specifications:ModelRB170F(E)RB178F(E)RB186F(E) Typesingle cylinder,vertical,4-stroke,air cooledsingle cylinder,vertical,4-stroke,air cooledsingle cylinder,vertical,4-stroke,air cooled Displacement(cm3)211296 406 Combustion systemdirect injectiondirect injectiondirect injection Rated output KW(HP)/rpm2.98(4.0)/36004.4(5.9)/36006.6(8.85)/ ...