Bombardier SeaDoo 1998 factory shop manual, Page 92Get this manual
Section 04 ENGINE Subsection 05 (TOP END)
PistonCylinder Wall Clearance
To determine the piston dimension, take the measurement on the piston dome
F01D8AA
F00D0EA
1Measuring perpendicularly (90to piston pin axis 2Auxiliary transfer port A16 mm (58 in)
1Piston dome 2Piston measurement