Hey Guys.

I finally got my hands on a Z50 after trying for months, and it has a few problems. It's a 78 all original. I've searched here, but haven't seen anything similar.
The biggest problem I'm noticing is it occasionally won't go into 1st, or won't shift once it's moving, or it's almost like it drops a gear on its own while moving!?
I can be more precise if needed, but I was hoping this would be a common problem with a simple solution!! You can feel it drop into gear, but it doesn't go anywhere. Slipping clutch? Bent forks? Thoughts?

Thanks in advance guys.