4 stroke small air cooled gasoline engine are usally powered for brush cutter, water pump, hedge trimmer, power tiller, motor bi 4 stroke small air cooled gasoline engine are usally powered for brush cutter, water pump, hedge trimmer, power tiller, motor bike etcModel139FType1-cylinder, 4-stroke, air-cooledCylinder diameterx Stroke(mm)39x26Maximum output0.93KWRated power0.8KWDisplacement33. ...