See if this post can help..its for the 650 thou.
http://burgmanusa.com/phpBB2/viewtopic.php?t=63
http://burgmanusa.com/phpBB2/viewtopic.php?t=63
You'll need to remove the rubber boot from around the reflectorIn trying to change the headlight bulb on a 2007 400, I can easily reach up under the front and feel where the plug goes into the headlight assembly. But when I try to pull the plug out, it seems fixed, like it might be locked in. I don't want to pull too hard and break something. Anybody familiar with the 2007 models? Do I just need to go ahead and use more force?
Not necessarily. Could be your starter switch. It cuts the light when you start the bike. I had the sme thing happen to me just last week. I just toggled the start switch a few times and the headlight came right back on. If that doesn't work, you may try taking the switch apart and cleaning it.It happened to me after work a couple of days ago...poof, no lights.
so I have to drop the front cover? really? dang.