... oil alerter 3)CE,ISO9001 1.5''-4'' air-cooled 4-stroke Gasoline Sewage Water Pump FEATURE1.Larhe fuel ... -stroke, air cooled2-stroke, 25°inclinde, single cylinder with air-cooledBore * Stroke (mm)45*4068*4568*4577*58Displacement(cc)63163196270Compression ratio7.4:18 ... water pimps,motors, gasoline generator set,air-cooled and water-cooled diesel generator,engineering devices,mining machine,electrical ...