just traded my 450 for an 05 yz250 and have some questions about the jetting. I've had 3 rides on it so far and it has a strong midrange bog. starts easy and runs great in 3/4 to full throttle. I ride at 4,000-6,000' elevation fmf pipe with stock silencer and new packing stock reeds but will put in V-Force 3 reeds soon. Oil: Maxima Castor 927 40:1 170 main N3EJ Needle with clip on #3 (right in the middle) 50 pilot jet air screw out 1 1/2 turns took out the plug and it has some build-up and color is black. What I plan on doing: 45 Pilot move the clip up 1 (moving the needle down)? I've never messed with the needle so I just wanna make sure I'm starting in the right direction. also I'm not familiar with the different needles...what needles would be good to look into for my altitude? also, what does that tiny jet on the side do? it says its a 50. thanks in advance!! so stoked on my YZ!