2001 Ski-Doo Factory Shop Manual Volume Two, Page 115Get this manual
Subsection 03
Section 04 ENGINE (LEAK TEST AND ENGINE DIMENSION MEASUREMENT)
NOTE: When checking the combustion chamber volume, engine must be cold, piston must be free of carbon deposit and cylinder head must be leveled1Remove both spark plugs and bring one piston to Top Dead Center using TDC gauge3Open burette valve to fill its tipAdd liquid in burette until level reaches cc4Inject the burette content through the spark plug hole until liquid touches the top spark plug hole
F00D0HA
1Top of spark plug hole
F01D2IA
1Bring piston to TDC