jetting with baffle out?

[Shift_450R]

If i were to pull my baffle out instead of installing a new main jet can i just richen up the fuel screw? Im doing this for the sound mostly.

[Flodies400ex]

just get a K&n and take the baffle out and you shouldnt have to rejet it I think yet because the friend of mine did it and the jetting was good but all bikes are diffrent