Kawasaki KDX200 (1989-1994) [57/174] Cylinder wear inspection

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ENGINE TOP END 4 11 Fit a new piston pin snap ring into the side of the piston so that the ring opening does not coincide with the notch in the edge of the piston pin hole Cylinder Inside Diameter Standard 66 016 66 031mm and less than 0 01mm difference between any two measurements Service Limit 66 10mm or more than 0 05mm difference between any two measurements Piston Diameter Measurement A Arrow B Snap Ring C Ring Opening D Notch Measure the outside diameter of the piston 15 5 mm up from the bottom of the piston at a right angle to the direction of the piston pin If the measurement is under the service limit re place the piston Cylinder Wear Inspection Piston Diameter NOTE oMeasure the cylinder inside diameter when the cylinder is cold room or ambient temperature Inspect the inside of the cylinder for scratches and abnormal wear If the cylinder is damaged or badly worn replace it with a new one Since there is a difference in cylinder wear in different directions take a side to side and a frontto back measurement shown in the figure If any of the cylinder inside diameter measure ments exceeds the service limit the cylinder must be replaced with a new one since the ELECTRO FUSION cylinder cannot be bored or honed Standard 65 939 65 954 mm Service Limit 65 79 mm Piston Diameter Measurement Cylinder Inside Diameter Measurement 15 5 mm 18 mm