Hello. The only way to find out production numbers on boats made a particular year would be at the manufacturing level direct from Sea Ray. I seriously doubt that they would divulge that information to a consumer, but you never know. Sea Ray isn’t very helpful on information on older boats, other than their resources online. Sea Ray is actually pretty good about putting old resources online for owners to see. You won’t see a lot of yellow accented boats out there. There were 8 different color choices for boats in 1989. Blue, Red, Green, and Yellow were available with matching waterline striping. Then there was just a white hull with the four different accent stripe colors for the waterline.
As far as wiring diagrams go, Sea Ray didn’t publish wiring diagrams to the public, as their designs were proprietary. You most likely aren’t able to get one.
Good luck on your information hunt. Enjoy the boat.
