Thanks for the tip. That's another good way to do it.
I really like the way you had the Rizomas installed on the rear of your 919.
I was going to try to duplicate that, but I can't figure out how you did it. I studied your photos and studied the bike. The left one is no problem, but on the right one, there is a large grey electrical connector sitting on the inside of that little black plastic tray under the tail, which (as far as I can tell) would be in the way of the threaded stud part of the turn signal.
Did you move/relocate that connector somehow?
I should have taken pics of this. That is the ECU you're talking about. It doesn't take kindly to drill bits, so DON'T PUT A HOLE IN IT.
If you take out the two bolts under the tray just above the hugger, and the two on the sides in the rear, the bottom tray actually drops quite a bit from the subframe, allowing you easy access to the ECU and other bits around that area.
Pull the ECU out of the tray. Look in the pocket of where it was sitting, in the rear of where it was at, on the left hand side. You see that vertical plastic 'stop' or post? I cut that back a bit, enough for the ECU to slide forward just a little bit more.
This allowed room to drill holes in the very rearward corner of the tray, in the bottom outside corners. And allowed the ECU to 'float' forward a bit more so that it could raise up above the indicator bolt without pushing too much on the frame or too much on the tray.
If you look at the pics, my left indicator was angled slightly down. This was more because I drilled the hole too close to the bottom and didn't allow for clearance of the nut on the inside of the indicator bolt, so it was forcing it down after I tightened it.
So if you go this route, just make sure you drill about 1/8th or 1/4 inch up from the bottom of the tray (whatever the thickness of that nut is, it's not very much). Don't go too high, however, or the ECU won't have room and WILL make it difficult to get that tray back on correctly.
And for what it's worth, I had no issues with the indicator on the right, it was only the one on the left that was a bugger. At this time, however, I also had a PC3 installed, so the cabling connected to the ECU was perhaps routed a bit differently and allowed some more room.