HI it might be a good idea to do a search on engine tuning and possibly engine setup, but to get you out of trouble try this,
turn on your transmitter then your buggy, take off your engine filter and look down the round opening and see how far open the carb is, follow your engine manual and this will tell you the there should only be a slight opening about 1.5mm approx, thats where you set your servo at. start your buggy at this setting and your are in business, if you find its to low a rpm just adjust a little on your transmitter. follow your engine setup manual which should of came with your kyosho buggy.
goodluck!
