<HTML>I've got a kinetic and did some things to improve the performance. Get the chamber from cosmo, its a tuned expansion chamber made by polini and comes with a bigger jet for the carb.Take off the airbox and drill a couple of holes right in front of the inlet port, this will give you more air so the mixure isn't too rich from the larger jet.for 100 bucks you'll get the same off the line but at about 10 m.p.h. it'll powerband to 20-25
and top out at 40-43 m.p.h.alot better than stock set-up.
I ordered the 70cc kit, I'll let you know how it worked out,