teamgp,

that sounds good, but for a newbie like me, it makes it impossible to tune. I might just drop my temp gun completely. Yesterday after a 10 minute main, my Matrix (which was still running) temped under or around 200F. When I lean it in a bit, it seems to whine more but smoke is still there. I checked the plug to see if it showed signs of being too rich and it looks new. Needless to say, I'm pulling my hair out (more nose than head ). we had a 250ft straight, no way it was 200F, I pull the throttle all the way.

Ended up winning 1st in B-main (got there because of rocks in drive train), then got the bump to the A-main but lost my 2nd place position to more rocks in drive train. Told my wife about it she said "i thought you took your onroad car, I didn't know you went offroading"....