after reading the jetting problems down to around page 14 and then looking at the chart in this forum i was surprized to learn that i never had a dirtbike that was jetted properly. my plugs were always black never the color on the chart. so i went into the garage ,pulled the plug on the kx and black. i had the plug from when i bought it and it to was black. i cant believe that at my age i am learning the ins and outs of carb jetting. this forum is really something,have a problem post it and you guys come out of the woodwork trying to help. thanks for all the help ive gotten,but i have just begun.