If your scooter has a dead battery, there are a few things you can do to get it started. First, check the voltage of the battery using a multimeter. If it is below 12 volts, then you will need to charge it before proceeding. Next, locate the starter solenoid and use a jumper wire to connect the positive terminal of the battery to the solenoid terminal marked with an S. Finally, turn on the ignition switch and press the start button. If done correctly, your scooter should start up!