Impulse 31 help

[Skullcracken]

This sounds very simple but I can't figure it out. The rudder on my impulse 31 is wobbly. Without any servo arm movement I can rotate the rudder about 10 degrees to the left and 20 degrees to the right. I can't figure out what to tighten. On the bench the rudder moves fine remotely, but with the force of moving water when running the "play" in the rudder causes the boat to turn very wide. Literally probably a 30 foot turn radius. Any suggestions?

[Foamaholic]

I had the same problem. There is a small set screw in a hole that needed tightening.

[fox88gt]

I noticed the exact same problem on my Revolt. I put a tiny drop of threadlock on the set screw before I installed it and its held tight ever since. Just make sure to only use a tiny drop so you can remove the setscrew if you have to.