I have a 1982 Honda Goldwing 1100, my front forks are leaking, what kind of a job is it to change the seals and what kind of oil do I use and how much oil do I add. Thanks so much"
You could do it yourself but it is not going to be easy.
Lift the front wheel from the ground.
The front wheel.
The speedo cable and the speedo clamp.
The brake calliper/s , just hang them with some rope or wire on the sides of the bike.
You need to remove the fork leg or legs.
However before removing the leg/s you need to empty the fork oil.
Unless you got the special tools necessary so you can do the job on your work bench you nedd to :
Undo the fork bolt at the top of the fork BEFORE removing the fork leg/s from the bike.
Be Careful the spring has a lot of upward force pushing against the fork bolt. So when the bolt is totally unscrewed it wants to fly away. Put a bit of weight on the tool and fork bolt all the time whilst unscrewing it and you will only feel a pop when it is off.
Remove the spring inside the fork leg.
Under the fork leg there is a hole and inside it you got a bolt holding the inner fork leg.
Whilst the fork is still in the bike undo this bolt.
Then and only
then, loosen the upper and lower fork leg pinch bolts.
The fork leg/s will slowly glide down or you can pull them by hand.
Place the fork leg on your work bench.
Remove the dust seal.
Then remove the stopper ring under the dust seal.
Pull the inner fork leg until it is released from the lower fork leg.
The oil seal, back up ring, slider bushing will all come out with the inner fork leg.
Remember in which order they were sitting on the fork inner leg/tube.
Now you can replace the oil seal.
Take some fork oil on your fingers and put some of the inner lip of the oil seal.
Use the old oil seal and a soft plastic hammer to drive the new oil seal very carefully
all the way in the lower fork legs upper part.
If the old oil seal gets stuck use a screw driver to bend it out.
MAKE SURE YOU DO NOT DAMAGE THE NEW OIL SEAL.
Also make sure that all the rings etc. that came out whilst separating the upper and lower fork legs are back in same order under the oil seal.
Push the inner leg back inside the lower fork leg.
Hand tighten the bolt that holds it in place, the one at the bottom of the fork leg.
Make sure that the fork leg/s are evenly and equally inserted in the steering stem from the top.
Tighten the pinch bolts.
Tighten the bolt at the bottom of the lower fork leg holding the upper leg.
Put the springs back in.
Tighten the oil drain screw.
Fill the leg/s with new fork oil to correct level.
Ask a strong , no make that very strong friend to help you push the tool and the top fork leg in so you can tighten it.
Be careful the top bolt has a very fins thread and you need to apply a lot of force and weight to get it in the upper fork leg.
All of the aobve is if you do not have any of the special tools needed.
Since you asked what is involved.
If you have not done it before and you are not sure you can do this job, take the fork/s to a workshop for repair.