Been a few weeks since I posted an update. Yesterday I performed the angle identification procedure with the QS motor and Kelly controller. I had an old Kindle Fire and was able to get the Kelly controller app loaded onto it and it works great with the bluetooth controller adapter. I wanted to do this off-bike (plus I'm still working on the swingarm) so I made a simple wood mount and set it up on sawhorses.
After the photo above, I wired in the contactor and keyed ignition switch. Just hearing the contactor clunk to life with the key was exciting.
I couldn't get the Domino throttle to spin the motor, but I was getting throttle input in the app and I could see the hall sensor values changing as I spun the wheel manually. Many thanks to @Resistor for helping during this process and with frustrating troubleshooting. Eventually I pulled and reconnected the wires for the Domino and it all started working! Seeing the wheel spin with the throttle and hearing that motor noise was a big deal.
From there I took it all apart and made a mounting plate for the controller, attaching it to the old spare tire mount in the left cowl area. I used some angled aluminum to mount the contactor and the shunt for the battery monitor. I'm not sure if that will ultimately work with the heavy gage wiring, but I'll see. Easy enough to come up with something else.
As I've mentioned before, this project isn't going to win any concours prizes! I did another fitment of the battery after making a bracket underneath the battery. You can see the ground bus bar on the right and 72V to 12V converter mounted in the back.
All of the motor/controller pin plugs will connect and sit nicely under the battery bracket and will be easy to access. I re-mounted the Domino throttle on the throttle tube and I think it's going to be a nice clean install.
Next I'll be finalizing wiring runs and cleaning them up and wrapping them. I'll wire in the 12V converter and make sure all of the 12V side still works. Then I wait until the swing arm is completed and fire it up. I should have swing arm parts back this week and I can test fit some things.
I also purchased an upgraded rear shock upper mount that has two attachment bolts instead of one. It is much beefier than the stock mount and I'm waiting to install it until I have the swingarm in place as I think it will give me some latitude to tweak the rear shock placement if needed.
Lastly, as I was drilling the holes into the scooter body for the battery shelf - I drilled a hole into my index finger. I thought my hand was clear but the drill bit came through much faster than I had expected. Idiot moment. I won't post a pic but it drilled a perfect circle about 1/2" into my finger and just spun everything around. Ouch. Be careful with those power tools, kids.