Backfire?

[DonoBBD]

Well can some one walk me through adjusting what needs to be adjusted so the spark stays on as soon as humanly possible when starting?

I am finding that the kids let off the gas peddle and she back fires. I try to explain to them that the spark stops when you let totally off the peddle.

Question is where are the adjustments so I can fine tune them for driving style of my kids?

Would it be better to wire the spark on all the time and wire a push button to start her up?

Cheers Don.