Here was my recent experience on this. On about every 2nd or 3rd start, I'd press the start button and it would just click and nothing would happen. When it did this, I'd press the button a couple of more times and it would always start. I figured something's going bad, better fix it. My battery was 6 years old, so I figured time for a new one anyway, might as well replace it. Got a new battery, slow charged it overnight and put it in. Tried the starter and it started right up, so I figured OK, I got it. Third start, it clicked again.
Next, I took the start switch apart, (it looked fine), cleaned it, stretched the springs a little, polished the contacts regreased and put it back together. Pushed the start button and it started right up. That must have been it. Third or fourth start later, it clicked again.
Next, I took the connector off of the start relay and checked it. It looked fine - I had put silicon grease on it several years ago. Cleaned it and put it back on. Tried the button and it started right up. Fourth or fifth starts later it clicked again.
Next, I replaced the start relay. Hasn't clicked since and that was in May right before the Tucumcari trip. (97 Tourer with 98K miles)
-RP
The starter on this bike will make a loud clicking sound while it is starting the bike. I has never just clicked. Thank you for your advice.