I've had some issues with my 1984 Honda Shadow 700 when it gets really cold and has been sitting overnight.
1.) Starter power is WAY low. When I try to turn it over in neutral it just doesn't want to start, even with the choke and me playing with the throttle. The battery always gives out before I can get it started, but at the same time the battery does not last very long. I can only try for a few seconds before it gives up... Which leaves me popping the clutch and with another problem. :/
2.) I leave it in first gear overnight, so when I try to pop the clutch in the morning, it takes a large amount of force to get the bike moving in first gear with the clutch in. (Way more than in neutral.) When I try to push it, it gives resistance, and the resistance is strongest at one point then gets easier. (Could that be a warped plate?) Once I get it started, it frees up and no longer gives this resistance with the clutch in.
3.) Another reason I think this is clutch related is that if I have the bike on the center stand and in neutral then rev up the engine > 2500rpm, the rear wheel starts to move. It's like it never fully disengages. Also when I am shifting through the gears I sometimes find what feels like an empty spot or an extra neutral, like the clutch never disengages properly.
I did change the oil recently, but it has only been getting below freezing the last couple of days. I used a full synthetic 10w40 as well. I assumed that was best for running it in colder weather and being old.
Any ideas from my cold riding brothers and sisters?