... RegulatorSelf-excited,Constant VoltageEngine modelH168F/H168FEEngine typeOHV25°Tilt single cylinder,Forced Air-cooled,4-Stroke,Bore×stroke(mm)68×45Compression ratio8.0 ... ,engine oil warning system,large muffler fuel oil indication meter air switchLoading Quantity (20GP/40GP/40HQ)235/490/490