ok what you need to do is take your engine apart and look at the insides if any are worn or damaged replace them if none are faulty you need to strip it and cover everything with wd-40 or nitro cleaner(works best) after you have cleaned it all coat the piston,the liner ,the crank with after run oil and make sure it moves without binding put it back together and flush it with fuel replace the glow plug to medium and get 20% tornado fuel the high revving could be faulty eletrics wich cause the the servos to twich good description of what the revs do lol hope this helps hope this helps