I've recently bought a 2002 426 and rode it 7 times. It's my first 4-stroke dirtbike. After adapting to the bike (haven't raced dirtbikes for seven years...been doing roadracing) and setting up the suspension I'm getting back to some decent riding. Anyway. Now I noticed the bike doesn't take off when I pop the throttle wide open it just dies and takes off again when I give delicate throttle and even completely stalls when I crack it open in neutral...It almost threw me of after cracking it open after a turn folowed by whoops. Not good. So I took the bike apart. I noticed there's no spray into the carb when I open the throttle. I presume fuel should spray out off the brasscoulored jet... Any ideas what to check, clean or replace??? It looks like a pretty complex carb... GRtz from Belgium.