2004 Ski-Doo Elite Factory Service Manual, Page 147Get this manual
Section 04 ENGINE Subsection 08 (CYLINDER HEAD AND VALVES)
Remove valve stem seal no28 with special pliers such as Snap-on YA 8230
R610motr126A
AValve stem diameter
VALVE STEM DIAMETER mm (in)
R610motr125A
NEW MINIMUM Exhaust Intake Exhaust Intake Exhaust 5.946 mm (.2341 in) 5.961 mm (.2347 in) NEW MAXIMUM 5.960 mm (.2346 in) 5.975 mm (.2352 in) SERVICE LIMIT