won't start via solenoid but will run

[riddmkidd]

hi all, trying to troubleshoot my 65 cb77. ran errands after a nice ride up to the local reservoir and back, a good 100 miles in the mtns. she wouldn't start (fortunately at home) though and all I got was a single CLICK from the solenoid. bridging the terminals on the solenoid does nothing. the battery is strong, I confirmed power getting into the solenoid but the feed line heading to the starter shows nothing. she will run via kick starting at least. what do I look for next? double checked the wires in the headlamp housing and everything looks "normal", though I'm new to working on electrical issues.

I removed the solenoid (talk about fiddly) and was able to get the lid open part way to see inside and the black thin wire (12+?) seemed loose. unfortunately I can't get the wire clamp undone and I don't want to risk doing any unnecessary damage. any tips on getting the housing off? if it's a disconnected wire I'm comfortable with resoldering if I have to but I feel like I'm walking in to a room blindfolded at this point.

could it also be my starter? this is a 13k mi. full restoration that I've put 1000 miles on since last August. avid rider here...