Bought the bike

Ok, got the bike for $350 off an add in craigslist. Came w/ a pink slip and not much else. Story according to the guy I bought it from was that he was selling it for a brother in law or some such, who had moved away recently. Apparently the bike had been sitting in the backyard since 1987.

Guy who sold it to me said that he had power washed it, and tried to get it to start w/ some carb cleaner sprayed into the spark plug holes.. apparently was able to get the engine to turn over and even rotate the wheels through the tranny.

So what I wanna do is the least amount necessary to get the bike up and running before putting anything else into it.