2009-2010 Ski-Doo REV-XP/XR 2 Stroke and REV-XR 1200 4-TEC Service Manual, Page 809Get this manual

2009-2010 Ski-Doo REV-XP/XR 2 Stroke and REV-XR 1200 4-TEC Service Manual, Page 809

Section 02 ENGINE Subsection 08

(CYLINDER HEAD)

3After spring is installedensure it is properly locked by lightly tapping on valve stem end with soft hammer so that valve opens and closes few times

Improperly locked valve spring will cause severe engine damage and hitting the valve stem end with excessive force could damage the valve
Valve Removal
1Remove VALVE SPRINGsee procedure in this subsection 2Push on the va lve stem then pull valves out of cyl inder head Valve SCflm seal