Hey, so my '01 xr400 has been an awesome mount and has run great through the last 12 years however........ it was stored for the last 2 years ( I was building a house) and I forgot to drain the carb. So naturally I have stripped down the carb and cleaned the green gunk out with carb cleaner. Both main jets and pilot jet were soaked and cleaned and blown out with air. (Standard Keihn carb with standard jets). New air filter and plug. So I kick it and it starts first time, sweet, but....... it will only run on full choke. No amount of backing out the fuel screw on bottom of carb can richen it enough to run without the choke on. I'm baffled at this point! Could the jets be "beyond cleaning"? Anyone have any ideas? I hate to admit defeat and take it to the Stealer oh, I mean "Dealer".