i have put a new lextek oval s/steel exhaust, k&n air filter, blanked the egr off and vaccum sealed the manifold but when i put in the 105 jets in it it runs fine but once i reach 8000 rpm it boggs out and with the standard 97.5 jets in bike runs fine but once it reaches 9-10,000 rpm it boggs out but not as much or hard as when the 105 jets are in it runs better now than what it ever has but just has this problem is it the air/fuel mixture screw? is that the screw on the side of carb? when i did put the 105 jets in i thought it was fine and didnt fiddle with the air/fuel mixture screw untill i took the bike out and realising that it was bogging out then i did fiddle with the screw on the side but it just seemed to rev higher or lower so i put it back to normal revs