ok my blaster doesn't seem to rev that high like it hasn't warmed up, also you know the throttle has some free play sometimes when you push the throttle and it is still in that little bit of slack free play it will rev up like its on half throttle, also sometimes the throttle with suddenly become very soft and you will have to let it go and push it again to regain so its not so soft to push. i have tried to explain it the best i can but i know its not that clear. i think the throttle is getting stuck but i'm not sure as for the lack of power and revs i have not a clue please help