9. DRIVE AND DRIVEN PULLEYS MXU 250R/300R Install the drive pulley and ratchet. When installing the drive pulley face, compress it to let the drive belt move downward to the lowest position so that the drive pulley can be tightened. Make sure the ratchet into the splines on the crankshaft when the ratchet is installed. Do not get oil or grease on the drive belt or pulley faces. Splines Splines Install and tighten the nut. Torque: 9.5 kgf-m (95 Nm, 68 lbf-ft) 9-15