Guys, I have a question for you. When I'm riding hard and say I shift into 3ed gear the bike seems to bog or fall off the power band kind of easy. Is this normal for the bike to do this? The last KDX I owned was a 88 and it never did this and it seemed to have more low end grunt. I changed the main jet from a 160 to a 155 and the bike ran cleaner but had no effect on the situation I described. Also I went from a 48 pilot to a 45 and the bike seemed to loose some of its just off idle grunt so I put the 48 back in. I think I will try a 47 on the pilot next. The only mods are a drilled out air box lid. I hope to get some input and thanks.