2004 Ski-Doo Elite Factory Service Manual, Page 159Get this manual
Section 04 ENGINE Subsection 09 (ENGINE BLOCK)
R610motr201A
1Timing chain
If chain is excessively worn or damaged, replace it as set (camshaft timing gear and timing chain)
Removal
Remove: (refer to OIL CHANGE in LUBRICATION section) (refer to REMOVAL AND INSTALLATION) cylinder head (refer to CYLINDER HEAD REMOVAL in CYLINDER HEAD AND VALVES section) PTO housing (refer to PTO HOUSING REMOVAL in PTO HOUSINGMAGNETO section) crankshaft (refer to CRANKSHAFT REMOVAL elsewhere in this section) timing chainR1503motr39A
1Plug screw 2Gasket ring 3Chain tensioner
Inspection
Check chain tensioner for excessive wear or cracksAlso check free movement of the chain tensioner piston