So instead of vegging out I put some YZ cams in my WR250 I had laying around. My WR is an 03 with a WB pipe and a 262 kit. I put a JD kit in it a while back and it was jetted sharp. I started the bike up and it barely ran. I wondered if I had the cams indexed right. Then I put the choke on and BRAPPP, it felt great. Much better power. I put a 185 main jet in it and it helped but the bike would stall when I opened the throttle fast. Putting in a 42 pilot helped as did opening the fuel screw up a bit. Still not happy so I soldered the leak jet closed and drilled it with a #79 drill (.0145). I take a tiny bit of solder and lay it on the jet and then just kiss it with a propane torch. That seemed to solve the problem. No more flame outs and much better throttle response. BTW I orderd some 4mm x 12mm stainless steel socket head screws for the float bowl. Made life much easier.