Re: 1990 four winns 19
Four winns makes a great boat but OMC is no longer in business and the drives have numerous problems that are unique-but still servicable if you can get the part. Eihter be prepared to learn all the maintance or find someone who works on old OMC. Around 1994 OMC merged with Volvo and those engines and newer are Volvo SX drives. You can not change old omc to other drives without alot of time and expense.
If you get a good deal-maybe, otherwise look for a newer model.