Re: ALMOST ready for a test ride, BUT...
For the kill switch and assuming you have a 2-stroke...
Wire the black wire from the motor to the black wire on the CDI AND the black wire from the kill switch (forming a "Y" connection).
Wire the colored wire from the motor to the colored wire on the CDI AND the colored wire on the kill switch (Forming another "Y" connection).
The white wire from the motor is a 6 volt wire for powering something else, like a light, in conjunction with the black ground wire.
The kills switch, when pressed, forms a dead short across the CDI essentially robbing it of power, which kills the spark to the motor.