I had a similar issue on my 75 R 90. I tried everything with no joy. One day I unplugged the signal flasher unit. Problem resolved. If I put the flash...

My R90 did the same. The indiator light was always on faintly. The fix was new flasher relay. I used a three wire automotive one instead of the very e...

Same issue here. I know this is an old thread but I thought replying here might let me get started making posts.