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When New Cylinder Block Is Used

Check the cylinder bore grade on rear-left side of cylinder block, and select piston of the same grade.

Fig 1: Identifying Cylinder Bore Grade
Courtesy of SUZUKI OF AMERICA CORP.
If there is a corrected stamp mark on cylinder block, use it as a correct reference.

Fig 2: Identifying Piston And Piston Pin Grade Number
Courtesy of SUZUKI OF AMERICA CORP.