I just did the BK mod to my carb on my 02 yz426 and when i went to tune it in, the pump wasn't squirting fuel at all. i pulled the whole carb apart and made sure to the best of my abilities that all the passage ways were clean. Tried it again and still nothing even after warming the bike up and making sure the float was full and everything. I don't know if this was an existing problem or if it was something i did in the process because the bike runs great besides a little throttle bog before i did this. Thanks for any information it is much appreciated.