This used carburetor top cap fits:
1983-1984 Honda XL600R
1983-1984 Honda XR500R
This used part is in good condition showing normal wear and tear
If there's even a chance you'll need this/these replacement part(s) in the future you'd better get them NOW!. Keep this in mind, replacement parts are always good to have. When you decide to sell your Honda, including a few extra replacement parts always sweetens the deal for both buyer and seller.