2009-2010 Ski-Doo REV-XP/XR 2 Stroke and REV-XR 1200 4-TEC Service Manual, Page 806Get this manual

2009-2010 Ski-Doo REV-XP/XR 2 Stroke and REV-XR 1200 4-TEC Service Manual, Page 806

Section 02 ENGINE Subsection 08 (CYLINDER HEAD)

1 Retainmg screws Thermostat

1M 10 cylinder head screws

9Pull up cyl inder head 10Remove and discard cyl inder head gasket
5Remove the CA SHAFT TIMING GEARS, see procedu re in thi su bsection6Re move valve adj ustme nt sh ims from sp ring retainersNOTE: Identify the position of each valve adjustment sh im very carefully, so it can be reinstalled in its origi nal place
Cylinder Head Cleaning
1Remove carbon deposits from combusti on chamber, exhaust port and piston top 2Clean cylinder head, especially cylinder head screw surface from oil spillage3Blow out the oi ori fices and check if they are not clogged