diff --git a/libraries/AP_Motors/AP_MotorsMatrix.cpp b/libraries/AP_Motors/AP_MotorsMatrix.cpp
index e712e506e8..d4cf17d527 100644
--- a/libraries/AP_Motors/AP_MotorsMatrix.cpp
+++ b/libraries/AP_Motors/AP_MotorsMatrix.cpp
@@ -477,7 +477,7 @@ void AP_MotorsMatrix::output_test()
         for( j=0; j<AP_MOTORS_MAX_NUM_MOTORS; j++ ) {
             if( motor_enabled[j] && _test_order[j] == i ) {
                 // turn on this motor and wait 1/3rd of a second
-                hal.rcout->write(_motor_to_channel_map[j], _rc_throttle->radio_min + 100);
+                hal.rcout->write(_motor_to_channel_map[j], _rc_throttle->radio_min + _min_throttle);
                 hal.scheduler->delay(300);
                 hal.rcout->write(_motor_to_channel_map[j], _rc_throttle->radio_min);
                 hal.scheduler->delay(2000);
diff --git a/libraries/AP_Motors/AP_MotorsTri.cpp b/libraries/AP_Motors/AP_MotorsTri.cpp
index 0d21f1d09a..b7192bbb8c 100644
--- a/libraries/AP_Motors/AP_MotorsTri.cpp
+++ b/libraries/AP_Motors/AP_MotorsTri.cpp
@@ -172,17 +172,17 @@ void AP_MotorsTri::output_test()
 
     hal.rcout->write(_motor_to_channel_map[AP_MOTORS_MOT_2], _rc_throttle->radio_min);
     hal.scheduler->delay(4000);
-    hal.rcout->write(_motor_to_channel_map[AP_MOTORS_MOT_1], _rc_throttle->radio_min + 100);
+    hal.rcout->write(_motor_to_channel_map[AP_MOTORS_MOT_1], _rc_throttle->radio_min + _min_throttle);
     hal.scheduler->delay(300);
 
     hal.rcout->write(_motor_to_channel_map[AP_MOTORS_MOT_1], _rc_throttle->radio_min);
     hal.scheduler->delay(2000);
-    hal.rcout->write(_motor_to_channel_map[AP_MOTORS_MOT_4], _rc_throttle->radio_min + 100);
+    hal.rcout->write(_motor_to_channel_map[AP_MOTORS_MOT_4], _rc_throttle->radio_min + _min_throttle);
     hal.scheduler->delay(300);
 
     hal.rcout->write(_motor_to_channel_map[AP_MOTORS_MOT_4], _rc_throttle->radio_min);
     hal.scheduler->delay(2000);
-    hal.rcout->write(_motor_to_channel_map[AP_MOTORS_MOT_2], _rc_throttle->radio_min + 100);
+    hal.rcout->write(_motor_to_channel_map[AP_MOTORS_MOT_2], _rc_throttle->radio_min + _min_throttle);
     hal.scheduler->delay(300);
 
     hal.rcout->write(_motor_to_channel_map[AP_MOTORS_MOT_1], motor_out[AP_MOTORS_MOT_1]);