Bombardier SeaDoo 2000 factory shop manual volume 1, Page 102Get this manual
Section 04 ENGINE Subsection 05 (TOP END)
Cylinder Taper
Using cylinder bore gauge, measure cylinder diameter at 16 mm (58 in) from top of cylinder just below auxiliary transfer port, facing exhaust portIf the difference between readings exceed specification, cylinder should be rebored and honed or replaced
F01D8BA
1Measuring in piston pin axis 2Measuring perpendicularly (90) to piston pin axis A16 mm (58 in)
F01D8AA
PistonCylinder Wall Clearance
To determine the piston dimension, take the measurement on the piston dome