Ok, this is going to be one of those weird ones but I am not sure where to go on this one. I have a 92 Dyna with small Baron style marker lights used as directionals. They have been on bike for years, along with a Badlands load equalizer and have always worked fine.

Recently, I noticed the right directional wouldn't work all the time. In the past I would clean switch on handlebar (it's stock) and all would be good. I use hand signals most of time and figured they got corroded from lack of regular use, as in past years.

Anyway, right side rarely works now, except when bike in NOT running. For example, if I put ignition on, it works every time perfectly. Once I start the bike, it might work right away but within seconds stops working. All during this, the left side always works as it should. I could see if it was the switch being faulty but it does work when motor is off- so I then thought it's the module giving up the ghost...but it does work when motor is off, so is it really the place to look? I could see the module being at fault but things like that tend to either work all the time or not.

Ideas?????