2009-2010 Ski-Doo REV-XP/XR 2 Stroke and REV-XR 1200 4-TEC Service Manual, Page 810Get this manual

2009-2010 Ski-Doo REV-XP/XR 2 Stroke and REV-XR 1200 4-TEC Service Manual, Page 810

Section 02 ENGINE Subsection 08 (CYLINDER HEAD)
VALVE GUIDE INNER DIAMETER NEW SERVICE LIMIT 5.505 mm to 5.518 mm (.2167 in to .2172 in) 5.568mm (.2192 in)

Replace cylinder head, if valve guide is out of specification Valve Face and Seat

AValves stem diameter

VALVE STEM DIAMETER
INTAKE VALVE NEW SERVICE LIMIT 5.471 mm to 5.486 mm (.2154 in to .216in) 5.450 mm (.2146 in)

EXHAUST VALVE NEW SERVIC LIMIT 5.461 mm to 5.476 mm (.2 15 in to .2156in) 5.440 mm (.2142 in)