Called Clearwater and got the kit for the Ducati Multistrada (same kit for the Diavel). The kit came with instructions from Clearwater lights, but the instructions are a bit vague. I wanted to post what I ran into so that this process is a bit less painful for those that come after me. Hopefully they can combine some of my feedback from this post into updating their instructions for a Diavel.
1) Mounting the lights - the included kit has what it calls "small shoulder washers" - these are supposed to go into the drilled holes on the front fender that the screws go through. Not sure on a standard Diavel but on my carbon the shoulder washers were too big to fit into the drilled hole - I removed them and instead placed 1 plastic washer on each end of the spacer. That makes a solid connection, and allows a bit of flex for the lights.
2) Running the light cables - I ran the cables outside the forks, and zip-tied them to the brake lines. To keep the zip ties from moving make sure to put them on the side of the rubber holders of the brake lines themselves - this will keep them from moving as the bike shifts around. I routed the wires up the left side of the bike (from facing the front) and behind the steering column.
3) The volume control know - the supplied rubber mount for the volume control knob didn't torque down sufficiently on my bike - I got it as best I could but I'll be looking for an alternative going forward - I went ahead and installed it on the left side of the bars (from the driver's perspective) but am not 100% happy with that.
4) Wiring - in the manual the wiring section shows a complicated wiring harness and honestly had my scratching my head. After removing the headlight (an easy job once I figured out that you can rotate the handlebars to change the access to the plugs on the back). Anyway, once you get the headlight out you can start planning out the wiring. It turns out that there is a switched accessory outlet in the bundle of wires coming up the clutch-side of the handlebars. In it you will find, near the top, a small white plastic socket filled with a connector that terminates in about an inch and a half of black crimped plastic - this is there for the accessory GPS kit I believe.
After removing that plug, I removed the covering rubber/plastic and soldered on 2 18" extensions. I heat-shrunk each soldered connection and then heat-shrunk another piece of tubing over both wires and the end of the plug to help the connections stay secure. This was the key to the project, getting things done without having to cannibalize any wiring harnesses. This plug and the extensions will be the power leads for the lights.
The only remaining item is the high beam - this is the only time I used one of the posi-tap connectors that came in the kit. On the headlight assembly, the high beam is the lower light. Follow the yellow wire from the high beam back to the connector to the wiring harness - that is where I tapped in the high beam switch for the Glenda lights.
Wiring everything together was actually pretty straightforward from this point. You group up the 4 wires for power and ground (I used the ground from the plug, and not the body ground from the kit) and connect those (I used standard screw-on electrical connectors like you would for a ceiling fan kit, and then wrapped them in electrical tape) and then the 3 wires for the dimmer switch. You connect the small white wire to the posi-tap connector on the high beam. I coiled the wires and installed them behind the steering column in a little space there - hopefully that area doesn't get too hot.
I have not yet found the fuse box on the Diavel to replace the 7.5 Amp fuse for this circuit with a 5 Amp fuse that was provided with the light kit, but that is next on my todo list. I was able to fire up the bike and see the lights work with the dimmer and the high-beam override. Doing a brief ride they do add quite a bit of light at night, but I'd say it's not extra depth vs. the headlights, just more light near the bike. It's definitely more conspicuous now.
Next mod for me will be an HID kit I think.
I just wanted to post my first take on this, any questions please ask, and I'll try and answer and edit this post to be helpful to anyone else considering this mod. Thanks!
Edited by Burbel, 18 February 2013 - 10:27 AM.