2001 Ski-Doo Mini Z Factory Shop Manual, Page 66Get this manual
Subsection 04
Section 04 ENGINE (DISASSEMBLYASSEMBLY)
Put apart valve spring retainer and springRepeat procedure for exhaust valve but ensure that valve rotator no14 is removed firstRefer to the following photoA31C29A
EXHAUST AND INTAKE VALVES SECURED IN PLACE 1Exhaust valve (small diameter) location 2Intake valve (large diameter) location
A31C28A
1On exhaust valve only, remove valve rotator then remove valve spring retainer