I have just purchased a 2009 Tao Tao ATA 110-D and they guy lost key so he disconnected the ignition and then the Solenoid must've went bad because it looks as if he took it off and bypassed as well. Right now it all I have to do is touch a wire to the negative battery post with the switch in run and the thing starts. My questions is how do I put the solenoid and ignition back on with wiring correctly. Does anyone have a wiring diagram? I can't find one.

 

I'll post the two common ways to wire up the starting circuitry below. Almost all 110cc quads use Plan B because it is easier to wire up the generic remote control stuff.





The solenoid is basically a remote controlled switch that can pass the 30 amps or so that the starter draws. You can't run 30 amps through a little start button! When you apply 12 volts across the two small wires on the starter solenoid current flows (about 3 amps) into a coil inside the solenoid. This generates a magnetic field, shich suck down a steel plate, and shorts the two big screw lugs on the solenoid. This connects the battery directly across the starter motor - making it turn.

Note the starter interlock in the wiring. In order to apply 12 volts across the solenoid small activating wires, all the folloing must be true:

1) Battery is charged
2) Fuse is not blown
3) Ignition is on
4) Brake is on
5) Start button is pushed
6) Ground return wiring is intact

In addition, all the wiring between the components above is intact.