I just rebuilt the top end on my 400 ex. Was burning lots of oil. It had white brothers exaust and k&N air filter, 38 pilot and 160 main jet. I bored the bike .20 over and put in a high comp 11.1 wiseco piston. I also put in stage 2 hotcams. Now, I already changed my main jet to a 172 which seems alot better. Is it recommended for me to increase my pilot jet as well? seems like it might be a little lean at lower rpms, seems to pop a little on decel. thanks