Re: 1989? force 50hp where's the model number?
Metal plate on left side of transom mount, if you're standing behind the motor. Also, a small white sticker on the back of the engine near the top, likely faded. If all else fails, there should be a wiring diagram on the top of the motor. They usually stay in good shape. Use that to check against wiring diagrams in a Solec manual or similar, matching color codes, etc....to figure out which model you have in front of you.