diff --git a/ArduCopter/ArduCopter.pde b/ArduCopter/ArduCopter.pde
index 1a31602067..7578d4ca16 100644
--- a/ArduCopter/ArduCopter.pde
+++ b/ArduCopter/ArduCopter.pde
@@ -844,7 +844,7 @@ void loop()
 	uint32_t timer 			= micros();
 	// We want this to execute fast
 	// ----------------------------
-	if ((timer - fast_loopTimer) >= 4000) {
+	if ((timer - fast_loopTimer) >= 4000 && imu.new_data_available()) {
 		//Log_Write_Data(13, (int32_t)(timer - fast_loopTimer));
 
 		//PORTK |= B00010000;