[Dash]

Whether or not the brake caliper is the culprit of your brake fluid leak, rebuilding the caliper is vital. Remember that your bike is over 30 years old now and a properly functioning front brake is crucial to keeping away road rash.



Your brake fluid leak may be due somehow to a crush washer. At each end of the brake hose is a banjo bolt. Each end of the hose should have two crush washers, one on either side of the banjo bolt (4 total on your bike). If one washer is missing, you'll get a fluid leak for sure. Sometimes the washers have no more "crush" left in them. In that case replace them or anneal them.



Next, seriously consider replacing the brake hose. They're not cheap but again, your bike is over 30 years old. I think they're around $40.

 

[Dash]

Regarding the copper washers, any motorcycle shop ought to have them. I don't know about Autozone, etc.



Are either of your fork seals leaking? If so, replace the seals. They are cheap -- I paid $15 for mine that I haven't installed yet. Been busy. But yeah, new seals and the proper amount of oil and it'll seem like you have a new bike.