... 2.5-2.8KW, 3.4-3.8HP diesel engine, Vertical, air-cooled, 4-stroke, single cylinder ... , Recoil start or electric stat optio 3.5HP diesel engine ModeKD170F/FETypeVertical, 1-cylinder, 4-stroke, air-cooledCombustion ... 3600rpm: 288 (394)Fuel0 (summer), -10 (winter) diesel oilLubeSAE10W30 (above CC grade)Overall dimension [mm(in)](L× ... (view from flywheel)Clockwise 3.5HP diesel engine EPA 3.5HP diesel engine