... /2000 3)Four-stroke, water-cooled, in-line, swirl combustion chambe 1) Engine: four-cylinder, four-stroke ... specificationsmodelYX495YX495D 495ZD495PtypeFour-stroke, water-cooled, in-line, swirl combustion chamberCylinder NO.-Bore/stroke(mm)4-95/ ... specificationsmodelYXK4100YXK4100D YXK4100ZDYXK4100PtypeFour-stroke, water-cooled, in-line, swirl combustion chamberCylinder NO.-Bore/stroke(mm)4-100/ ...