2005 Ski-Doo Tundra, Skandic, Expedition Shop Manual, Page 139Get this manual
Section 03 ENGINES (2-STROKE) Subsection 04 (LEAK TEST AND ENGINE DIMENSION MEASUREMENT) F01D5VA
1Combustion chamber
NOTE: When checking the combustion chamber volume, engine must be cold, piston must be free of carbon deposit and cylinder head must be leveled Remove both spark plugs and bring one piston to Top Dead Center using TDC gauge1
F00B0BA
1Graduated burette (0-50 cc)
Open burette valve to fill its tipAdd liquid in burette until level reaches cc Inject the burette content through the spark plug hole until liquid touches the top of the spark plug hole