... running,with air cleaner and exhaust silencer. Air Cooled Engine Performance CurvesPerfomance measured after 30hrs running,with air cleaner and ... :60%[60%]Model170F178F186FTypeSingle-cylinder,Vertical,4-stroke,air-cooled diesel engine Combustion system Direct injection Bore*stroke(mm)70*5578*6286 ... or Camshaft(Camshaft pto rpm is 1/2) Direction of revolution Left(From PTO) Fuel/Lub.oil 0# in summer,-10 ...