I recently picked up a 1973 Jazz bass that I totally love, but the tuners are very stiff and difficult to turn at times. There's been times where I've had to use both hands to turn it and I know that can't be right. I'd really love to keep the original tuners.
How can I go about lubricating them or loosening them up without loosing tuning stability?
How can I go about lubricating them or loosening them up without loosing tuning stability?