2005 DR Z400s 130 main jet from a stage 1 Dynojet kit, the rest of the carb is stock I'm not sure about the needle or clip position (6) 1" holes in the air box, Ready Filter 5300ft work, 8300ft home Yoshimura RS-3 slip on, stock head pipe The bike really ran good in Denver but after the move to Conifer things have been strange. I'm hoping it's jetting... When I start the bike up in morning cold at 8300ft I can't use the choke. Even in the half way position the choke has little or no effect on rpm. Once I get it running getting down the hill is no big deal but coming home once the bike is good and warm I start getting a healthy hesitation. Bog I guess... I twist and a second later the bike starts to pull. The hotter it is the worse it gets. Thanks in advance for the help!