9. KICK STARTER/DRIVE PULLEY/ CLUTCH/DRIVEN PULLEY ATV 50 Weight Roller Remove the weight rollers. Remove the weight rollers. Check each weight roller for wear or damage. Measure each roller O.D. Service Limit: 12.4 mm (0.496 in) replace if below Movable Drive Face DRIVE PULLEY INSTALLATION Install the drive pulley collar and movable drive face onto the crankshaft. Drive Pulley Collar 9-10