2008-2010 Kawasaki KFX450R Factory Service Manual, Page 197Get this manual
5-36 ENGINE TOP END Cylinder and Piston
Piston Ring Groove Width
groove width Measure the vernier caliper.at several points around the piston with a
Piston Ring Groove Width Standard: Top Second Service Limit: Top Second 1.13 mm (0.0445 in 1.12 mm (0.0441 in 1.03 1.05 mm (0.0406 0.0413 in 1.02 1.04 mm (0.0402 0.0409 in
If any of the groove widths exceeds the service limit, replace the piston
Piston Ring Thickness
Measure the thickness at several points around ring with micrometerPiston Ring Thickness Standard: Top Second Service Limit: Top Second 0.90 mm (0.035 in 0.90 mm (0.035 in 0.97 0.99 mm (0.038 0.039 in 0.97 0.99 mm (0.038 0.039 in