1992-1993 Yamaha V Max 4 VX750 Snowmobile Factory Service Manual, Page 85Get this manual
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PRIMARY SHEAVE AND DRIVE V-BELT INSTALLATION
Bolt CD (primary sheave): (initial tightening) 120 Nm (12 kg, 87 ft Ib)
Loosen the bolt (primary sheave) completely Retighten the bolt (