2011 exc450; exhaust mod, de smog, gear, and jd jet kit. I believe 175m forget pilot, maybe 48? and red needle at 5th w/ o-ring and cap. Bike runs unbelievably but I feel it should start better. Choke almost fires it up but only for one attempt, then it doesn't want the choke. It'll try to start like it's cold, it takes a few times to get it going. Doesn't want throttle when trying to start either. Maybe fuel screw needs adj? I forget if it's 1 1/2 or 2 out. Any suggestions? Thanks.