Ok I recently changed my oil, in the motor, and drained gas and changed premix, now when I start the bike cold, I do a couple compression kicks, mpullnthe choke out, turn the key and kick it and firstmkick it comes on real weak and then dies, I have to hold the gas down a pinch for a minute when starting it sonit stays idling until it warms up and is fine, after its warmed up all isgood, sounds good, but before I changed oil and drained gas it would always start first to second kick and stay on, I also tryed to start without chocke and also half choke can someonentell me whata goin on?