Electrical parts Q?

not really for a trail quad, some of the draggers upgrade the timing, coil and plug wires,
advancing the timing is the most popular, but hasnt proven to give any more horsepower, or top speed, maybe better throttle response
someone just did a test, zero top speed gain with it advanced
 
i had a hotshot once, between that and an airleak, i fried a piston, and the way my builder does things, we dont fool with timing, it can cause serious heat problems, and not worth the risk for the small gains, if any
 
The ricks stator 75 watt lighting coil is a nice upgrade for a trail quad. It doesn't produce any more power at idle (so the headlights are still going to dim out when idling) but it's nice to be able to pur a second small headlight on the front.