Originally Posted by
LLRCFlyer
Another thing to check after many years sitting idle are the servos and wiring. Check all wiring to make sure the insulation has not turned brittle.. Also cycle each servo 100 times over its full range of travel to verify it is not gritty and does not stop, jitter, surge or pulse due to dirty brushes or a dirty potentiometer.
I've cycled the servos quite a few times and they're working well. I'll chek the insulation as well. Your response also got me thinking I should spray electronic contact cleaner on all the connectors.