Are using the CH Control manager? Or Mapping through AH?
If you are mapping your sitcks directly through AH then
go into to Ah , joystick / select joystick
select roll, select CH stick , select X-axis click then set input
Select Pitch , select CH stick, select Y-axis then set input
For throttle
Select throttle 1, select CH throttle, select Z-axis then set input
For rudder
Select Rudder, select CH Pedals, select Z-axis then set input
Select left brake, select CH Pedals, select X-axis then set input
select right brake, select CH pedals, selct Y-axis then set input
Apply/ok exit.
If you are making your own CH map using ther control manager foolow the site linked above or downlaod revins and modify it as you like.