Hello all...noob here. I acquired a 1999 yz400 for a steal but of course it has 'carb issues' from sitting so long. I pulled the carb off and now I'm about to start tearing into the float bowl. Dumb question:l I've never had one of these apart; can someone tell me where the jets are located and which ones I need to replace? Pilot jet? Leak jet? Main jet? Also, I think I read somewhere that I should count the number of turns out the pilot jet is? Isn't the pilot in a fixed position? All the way in? Thanks...much appreciated!