I have finalise the " defaut.lua " for the joystick folder
{action = 3001, cockpit_device_id = devices.MOTOR_SYSTEM, name = _('Engine RPM Setting')},--bon
{action = 3044, cockpit_device_id = devices.MOTOR_SYSTEM, name = _('Mixture Setting Axis')}, --bon
{action = 3042, cockpit_device_id = devices.MOTOR_SYSTEM, name = _('WEP Setting Axis')},--bon
{action = 3047, cockpit_device_id = devices.MOTOR_SYSTEM, name = _('Motor cowl flaps Setting Axis')},--bon
{action = 3048, cockpit_device_id = devices.MOTOR_SYSTEM, name = _('Oil radiator Setting Axis')},--bon
put it Mods/Aircraft/I-16/joystick default.lua