Bombardier SeaDoo 2001 factory shop manual, Page 120Get this manual
Section 04 ENGINE Subsection 05 (TOP END)
F00B0AA F01D0XA
1Feeler gauge 2Rectangular ring (bottom)
1Indicator set to zero
Position the dial bore gauge at 16 mm (58 in) below cylinder top edge
947 Engines Due to the semi-trapez rings, it is not possible to accurately measure ringpiston groove clearance
Ring End Gap
Position ring halfway between exhaust port and top of cylinderNOTE: In order to correctly position ring in cylinder, use piston as pusherUsing feeler gauge, check ring end gapIf gap exceeds specified tolerance, rings should be replaced