How do you replace fork seals in a 1995 Kawasaki Vulcan EN500?

NO. IF they are leaking, either they have been overfilled, you nicked the seal during install, the forks have some small surface defect in the seal contact area. If you did not replace them, they need to be replaced.... without regular usage.. they get dry, shrink, sometimes the seal lips crack

The fuel on/ reserve adjustment (fuel petcock) is on the bottom left side of the tank opposite the key switch and near the choke. The fuel line extends from that and will drain the tank if you remove it. You will likely want to remove the tank if you plan to drain a lot of fuel. That will make it a little less messy

if u go on a vulcan forum you will get all answers you need.

go ahead and try it

how do i change the oil and filter myself on the kawasaki 1500 vulcan 1996. what type of oil do you suggest would be better for my bike. thanks

You have to get the book on this one to redo your forks, If you are replacing a seal or just topping them off, you shouldn't have a leak, but the fork oil is special from any bike shop and the amount is kinda critical, so find a book with the amount of oil needed. Usually you would remove the forks, lay them in a big long pan, pull the ends, and pull the springs and seals out, squeeze them back together and fill them with oil. Hope this helps.

No you have to remove forks, slacken the bolt in bottom of leg to take upper tube out of lower, then change seals.

If you never have put for oil into a set of forks, yes you have to check both forks. I would suggest treading lightly. If you have time and a place to block the bike as well as a manual you can do it.
Are you adding oil because the seals are leaking or do you have excessive stiction in the fork? If the seals are leaking, you will have to pull the forks and add new seal and put in exactly the right amount oil.
Do you have air seat or is it a closed fork?
For you en500 you should have a volume of oil in your service manual.