Re: 15hp gamefisher
$500 is high, especially for an almost 25yo Force...
You're going to need to dump $30-50 of parts into it, plugs, fuel pump rebuilt and water pump impeller to make sure it's going to be dependable. Then there's the NLA ignition........
I have a 89 7.5 HP Force (Gamefisher) and it's been a good outboard, but when the ignition crapped out on it I had to spend $200 on an ignition upgrade. Standard Magneto can supposedly build the BIM coils (1/2 of the ignition) for $80-90, but I went with the full CDI upgrade for $200.
Also, if you can't work on it, I definitely wouldn't buy it as it could be tough finding a shop that will work on it.