Sounds like a battery that's starting to go bad. Is it turning a little slow? Put a meter across the battery with the key off and see what it reads VDC. Should be about 12.6 VDC. Turn the key on and see if voltage drops, it shouldn't. Try to start it, a true load test, and see if the Voltage drops, it may a little as it takes a lot of amperage to turn starter. I think the clicking that you are hearing is the Starter Relay closing and opening because the voltage is dropping too much.
2005 1100 Custom
ORKed 5/16" Lines
PODs K&N RU-600s W/PCV
PCS XXX/2 cams
Jetted & PMS Tweaked 20.0/152.5 3.0 turns
Wimmer Machine Custom Oil Cooler & Stash Tube
Dyna 3000 Step 5/ 6500 redline
6" Fwd Control Extension W/Boards F&R
Memphis Shades Bullet Fairing
Progressive 465 rear
Progressive Springs and GVE front
10,000 Monkeys throwing crap at the glass and this one thinks he's Picasso...