bought my daughter this atv, it starts up quick and drives good but it is soooooo under powered.

my wife has a 250ex that honestly has twice the pull power

the little zuki dont miss out, it fires up real quick but I think it should have a little more ummmmmmph

it starts so easy I cant imagine its low on compression, it revs all the way out of each gear (it just takes a long time)
I know its not going to run like a 450 but it should do better than this

any ideas ?