Where is the brake bleed valve for a 1986 goldwing?
All bikes, actually all vehicles (to my knowledge) bleed at the caliper, the device that squeezes the metal disc, at the wheels. Bikes are fussy and sometimes hard to bleed, if I could suggest a method which helps, read on;
1. Use a piece of hose which fits snugly on the little "bleed valve" (a small threaded nipple on the top of the caliper body), long enough to go into a small jar,
2. Open up your master cylinder reservoir, fill it, leave the cover off.
3. Loosen the bleeder, attach the hose to it, run the other end into the jar, and put enough brake fluid in the jar to cover the end of the hose, and perhaps an inch or two above it.
4. Be sure the bleeder is open enough for the fluid to flow, slowly squeeze the brake handle or pedal, fluid and air will push into the jar under the surface level of the fluid. Be absolutely sure the reservior stays full.
5. Bleed it good, flush the old dirty stuff out. The hose under the surface of the brake fluid won't let air get back in.
6. While holding the brake lever or pedal down, remove the hose and tighten the bleeder.
Make sure your reservoir level is good, DON'T overfill! Brake fluid expands when hot and may cause your brakes to stick.
Wipe up brake fluid immediately, it makes a great paint stripper.