Under the top cover (fake "fuel" tank)
Just Google ------Honda Gold Wing parts, you will get a list of company's. Check them all out.
1 dollar.
Under the engine, right side, in the back.
Honda
1200 engine, oil cap. is 3.2 liters or 3.4 U.S. qt's.
honda does
The gl 1200 model is from 1984 to 1987. The only difference that shows in my manual is valve timing and maybe a few other things, unless it is fuel injected, or the aspencade model. Otherwise I do not see a problem. If you have the engine on the bench, then might be a good idea to change the stator and check the clutch.
Contact Honda
Marysville, Ohio
2.8 quarts
That would be each fork. 345cc or 11.7 oz. each.
3.6 quarts.