I have come accross a problem with a buggy motor that has me a little confused. After a few minutes of running the idle drops to a point where it will flame out on corners or pit stops, etc. If the idle is set correctly when the motor is hot it seems to run fine . After letting the motor cool down and restarting it idles really high.

The tune seems to be fine, and the motor doesn't overheat or do anything strange apart from this.