L-CHEAPO IGNITION SYSTEM

This 6 volt circuit is a real battery saver. If your motor stops with current flowing to the coil, it times out in less than one second and current stops flowing. If you are using a hit-miss motor you can save even more battery by adding Q4 to sense when the exhaust valve is closed. Q3 and Q4 are used instead of points. Q3 and Q4 are Hall effect transistors and are operated by the passing of a small magnet. You can set the timing by the led or by removing the spark plug and watching the spark (the plug threads need to be touching the motor frame). Below is a list of parts and where to find them. (Do not use a soldering iron larger than 30 Watts). How to solder.

If you wish to use points instead of a hall effect sensor, connect your points to ground and the IN
connection on the circuit board. The spark will fire when the points close.

Above is the layout for L-CHEAPO Ignition system. When your points make, you see only one hot spark but in reality this circuit is pumping out two to eight sparks depending on the speed of your motor.