If you are getting popping on decel then are are lean on your fuel screw. In leans out richens. Basically screw out till there is no popping on decel 1/4 turn at a time. I wouldnt go past 3 1/2 turns tho because vibration could cause the screw to fall completely out. If thats the case you should go up 1 size on the pilot jet. At least this is for 4 strokes not all to sure about 2 strokes. Hope it helps.

 

Look at my picture page if you want to see what lean can do!!!!!

 

i saw you picture and that is why i posted this because i dont want that to happen to me. But from what the one website says i am gunning good but not best, so i really love that bike so i might order the 143 to see what happens. thanks alot guys