Bombardier SeaDoo 2000 factory shop manual volume 2, Page 87Get this manual
Section 04 ENGINE Subsection 05 (TOP END)
Read the measurement on the cylinder bore gaugeThe result is the exact pistoncylinder wall clearanceNOTE: Make sure the cylinder bore gauge indicator is set exactly at the same position as with the micrometer, otherwise the reading will be false
Different thicknesses of cylinder base gaskets are used for precise adjustment of the combustion chamber volumeTo identify gasket thickness, refer to the identification holes on the gasketRingPiston Groove Clearance
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