I've never seen risers for Husky's and I've never had a need to raise my bars but thats not to say they don't exist. Maybe riders are just buying taller bars.
If you have the stock 80 style clamps, that angle way back, then you can get some rise by going to the 83-newer style clamp that is not angled back. But, on the 80, you might have too much chrome tube above the top triple to fit these. You can simply stack up some washers under the stock clamps and use a longer bolt, or turn a spacer to your specs with a longer bolt.