steering head on this 86 500 is loose i think,
i push bike with brakes on and fork's go forward.
We will do the best we can to help, but you need to be far more descriptive about what's going on with your issues. I'm totally confused by what you are trying to describe...
If you think your steering bearings are loose get the bike up on a stand front end off the ground and grab the front wheel are see if they have unwanted front to rear movement.