fixing my kx 250 dirtbike (carburetor troubles)

A  couple of weeks ago my kx 250 was bogging down  once i got to 3rd gear.First and second gear bogged a little bit but wasn't to bad,3rd gear along with the rest of the gears just bogged down completely.I had a feeling that it was my carburetor so i  took  apart the carburetor and it wasn't that bad,i cleaned it the best i could put it back together and tried it out.It was a failure still had the same problem.I decided to look at other possibilities checked the reeds,used fresh gas,new oil,everything seemed fine.So i look back at the carburetor,a friend tells me to get some carb dip,it is like this extreme chemical type solution.I then proceeded to order some because my friend had said if there was any dirt in the carburetor that i had not gotten  out or could not see that this solution would do the trick.By the way the carburetor dip was by yamaha i got 2 32 ounce bottles.i used the dip put everything back together,once again used new gas  with a 32:1 ratio changed out the engine case oil with belray,Belray is more on the expensive side but its always worked for me.started up the bike once again,i also messed with the air screw on the carburetor a little bit  and my 1992 kx 250 now runs like a champ no bogging at all!It is a 2 stroke after all so there is always gonna be something thats not perfect,well thats my experience with 2 strokes like right now my bike runs good and all but i am fouling a plug about every 2 weeks.Its not that big of a deal just means i have to change the plug more it used to only need to be replaced every month or so but now i swear its like every 2 weeks,i also ride alot but i always have i guess thats what happens when you live in the desert and have nothing better to do..When im not riding my bikes im working on them.