I am sorry to say "ANY" outboard older than 10 years or so its not worth too much. Your 1982 is worth $2500.00 if that. Any motor almost 20 years old will have something go wrong soon. Even if it was rebuilt recently. I sold a 1989 175 rude in 1996, this engine was mint and babied and I sold it for 2500.00, because I just wanted to repower and get rid of it. Their will always be good engines cheap and people know this.