just bought my revo 3.3 the other day. broke it in according to the directions. Got to the tuning part and everything went well, until it overheated to the point it shut down and wouldnt start back up. let it cool and replaced the plug, and it fired right up. continuted to tune it, but now when it gets up tp temperature and i stop it to make adjustments, it wont idle. just dies. It will start back up while hot now, but wont hold an idle. Suggestions?