2004 Skidoo Tundra Skandic Series Service Manual, Page 228Get this manual
Section 05 TRANSMISSION Subsection 03 (DRIVE PULLEY)
ASSEMBLY
Install spring seat no11 then the spring and its cover no5Make sure to install blocks in their original position and with their curved end toward governor cupSee following illustrationA05D0LB
1Curved end
Tighten nut no8 to 128 Nm (94 lbfft)
INSTALLATION