1.950 gasoline generator 2.larger bore 47mm make the engine more powerful 3.low noise 950 gasoline generator ModelTW650BTW950BTW1000BGeneratorTypeAir cooled, 2stroke, single phase, gasoline,brushlessMax. AC ... ModelIE45/IE47Engine TypeAir cooled, 2-stroke, single cylinder,gasoline engineFuel Gasoline and Oil Mixture (50:1)Displacement (CC)63Engine Speed (rpm)3600rpmEngine Starting ...