If you can do the work yourself and want to do the work, keep it and ride it. If not, sell it. Like Freebird said, the bike won't sell for what you will have invested in it fixing it up. But, if you want to ride it, they are great sport touring bikes. The bike can be ridden without second gear as our dear friend Cowpuc did for hundreds of thousands of miles on several 83s and 84s.