The chain can stretch during use or may occasionally come out of adjustment. Regular attention to proper chain tension and lubrication will minimize the risk of the chain falling off the rear sprocket and help your scooter maintain optimum performance.
Properly adjusted, the chain should have 5-6mm (1/4″) of up-and-down travel or slack.
Currie Technologies® strongly recommends that any chain tension adjustment be performed by a trained scooter or bicycle mechanic.
500, 650, 750 and 900 SERIES SCOOTERS
Adjusting the chain tension is performed by moving the motor back and forth within the motor plate.
1. Loosen the three 5mm Allen bolts that hold the motor and motor guard to the motor plate.
2. Twist the motor (counter-clockwise to tighten the chain, clockwise to loosen the chain) to adjust the chain. Please note that a slight rotation of the motor will dramatically effect the chain tension.
3. When proper chain tension of 5-6mm (about 1/4″) of up and down movement is achieved tighten the three 5mm motor bolts.
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