8. KICK STARTER/DRIVE PULLEY/ CLUTCH/DRIVEN PULLEY ZX / SCOUT 50 Weight Roller Remove the weight rollers. MOVABLE DRIVE FACE INSPECTION Check each weight roller for wear or damage. Measure each roller O.D. Service Limit: 12.4mm replace if below Movable Drive Face DRIVE PULLEY INSTALLATION Install the drive pulley collar and movable drive face onto the crankshaft. Drive Pulley Collar 8-10