Ok, this may get a bit long, but I'll try to keep it as brief as possible. Bought the daymaker kit from Backyard Air Suspension. Great "drop-in" kit to replace regular bulb/headlight. Only drawback, no adjustment screws for aiming headlight, not that one is actually needed. It arrived, and I proceeded to install on bike. I removed the old light assembly and lined everything up. The kit comes with two screws slightly longer and larger than the originals to attach the bracket (ring) to the plastic headlight rim. Upon tightening these screws, the plastic screw holes (pillars) disintegrated. WOW! No problem, I found a replacement on Partzilla (around $20) and got it the next day. Began installation again. Same result. Now I'm really ticked off. The screws were tight enough to hold, but I was worried about road vibration cracking the rest of the pillar and the light falling out. I hate to admit it, but I decided to clump some JB Weld around the pillars and screw to reinforce it. (I didn't unscrew it because I was afraid the plastic may continue to break. Test drove it today, after giving JBW enough time to cure fully, and no problems. Light is bright and with the two new 3600 lumen (each) driving lights, I have plenty of light for the road on low beam. (Driving lights are set up to turn off when on High Beam, but I rarely need High.)
Now for a possible solution to this problem if anyone else buys the kit from Backyard Air Suspension: Don't use the screws supplied with the kit, make a set of studs using machine screws, to mount the light to the rim. You can go to your local hardware store and get the following: 1. JB Weld (original with two individual tubes, not the syringe plain epoxy type, get the on with the metal in it.) 2. a pack of machine screws and nuts. I think the size needed is the #6-32 x 1 1/2" or 2" machine screws, but that is just a starter point of reference. You will want to make sure the screws fit in the holes on the headlight rim without being too large. (Get some washers that will fit these screws as well as a couple of sizes larger as well.) Next step: cut the heads off of two screws and put a nut about halfway down the screw.The nut should rest on the top of the pillar with at least 3/4" to 1" sticking out above the nut/pillar. Next, coat the end you cut off up to the nut with properly mixed JB Weld compound (just enough to make the "stud" stick tight in the plastic pillar. The nut should rest at the top of the pillar ***Make sure the stud is straight in the hole!*** Coat the outside of the pillar with JB Weld to strengthen it further. Allow JB Weld to cure (about 4 hours). When you put the outer metal ring (part of the kit from Backyard) you can lock it in place with a washer and nut. Now place the Daymaker light in the rim, along with the back support ring. You can then use appropriate sized washers and nuts to lock the whole assembly together. This way you can remove/change the light if you ever need to do so without breaking the plastic pillars.
I hope this will help others from having the same problems I had in installing the Backyard Air Solutions Daymaker kit.