2.3.3 Horn
Pressing yellow switch sounds the horn
2.3.4 Reverse switch
Press switch, turn throttle, scooter move backwards/reverse;
Release switch, turn throttle, scooter move forward/normal.
Don't use this switch until scooter is stationery.
2.3.5 Park brake
Pull Park brake back, put part support down, release, lock rear
wheel.
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