2005 Ski-Doo REV Series Shop Manual, Page 362Get this manual

Section 08 DRIVE SYSTEM Subsection 04 (PULLEY ALIGNMENT)
If the alignment is good, hand torque the torque rod so it slightly contacts engine crankcaseDo not over tighten, it will disalign pulleysWhen the alignment is done, refer to DRIVE BELT to adjust the drive belt deflection
ALIGNMENT PROCEDURE
Remove driven pulley and add or remove spacer(s) as required to obtain the specified alignment
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1Spacers

• ATV
• Jet Ski
• Outboard Motors
• Personal Watercraft
• Snowmobiles
• Stern Drives