how good is the hyper 8 port when it runs right i just put a new pull start on mine. but everytime i start it i give it gas and the rpms just wont climb i tryed leaning it out and everything. and when the rpms do climb(very rarely) the wheels dont spin. i have an idea of what this problem is, i think the clutch springs are tostrong but i'm not sure so give me some ideas. thanks!