Big Windy

I have an AR7200 just installed on my Gasser and the tail Kicks hard/rapidly and returns every 20 to 45 seconds. I can feel nothing unusual in the gear train or on the servo. The servo is a new Spektrum Tail servo.

Any thoughts on where to go or how to solve the kick?

A. J. Clark

Is your motor running smoothly? Bearings all in good condition? One way ok? Clutch holding good? All of these cause a kick on the tail.

Big Windy

All seems well. The One way appears fine, but I will lube it as it has been sitting for more than a year. A bearing seem smooth and everything swings easy with no drag or noise.

Thx for the one way thought!

Big Windy

Should have also said I overhauled the carb and it seems smooth and easy starting.

A. J. Clark

Another thought is if the control rod to the rudder is to far out on the servo horn can cause problems.

dwad

remove the thrust bearings and check and re-grease.