1997 Ski-Doo Factory Shop Manual Volume Two, Page 94Get this manual
Section 03 ENGINE Sub-Section 04 (LEAK TEST AND ENGINE DIMENSION MEASUREMENT)
Install short pieces (13 mm (12 in) long) of solder directly on rotary valve, one above and one below rotary valve gearApply grease to hold solder in positionReinstall cover in place WITHOUT its O-ring and torque screws to 20 Nm (15 lbfft)Remove cover then clean and measure compressed solder thickness, it must be within the specified tolerance
A00A1LA
CHECKING CRANKSHAFT ALIGNMENT
Install degree wheel (PN 414 3529 00) on crankshaft endRemove both spark plugsInstall TDC gauge (PN 414 1047 00) in spark plug hole on MAG sideBring MAG piston at top dead centerRotate degree wheel (not crankshaft) so that 360 mark aligns with center of crankcaseScribe mark on crankcaseRemove TDC gauge and install it on PTO sideBring PTO piston to top dead center10 20 30 40 50 60 70