I just bought an 85 Hunter 25.5. The seller was the 2nd owner but had her for at least the last 10 years. He literally knows nothing about the boat. I asked him about the tank for the sink, the stove, the toilet, and the lights but he didn't know where the water for the sink comes from, he knew the stove was alcohol but no idea how to fill/use it, never used the toilet, doesn't know about the nave lights or the VHS.
How do I find out?
It sounds normal. Here is a link to the 3rd thread I started.
H280 Service Manual
As an old retired navy guy and an owners rep construction inspector, it baffles me that there is not a complete of installation and operation manual turned over at the time of purchase and kept up to date over the years.
I did have a survey completed by a 3rd party and that helped me identify the issues that need to be resolved moving forward.
I always have a 6 in 1 screwdriver, a good pocket knife and a crescent (adjustable) wrench with me at all times. Sunday is my sailboat day. Repairs are being made and once all the safety issues are corrected, it will go from being work day to a sailing day. Every Sunday night I go shopping for things I cannot fix. Thank the good Lord and good genetics from my fathers bloodline I am handy with my hands.
Ask questions. There are 100s maybe be 1000s of years of sailing experience and knowledge in the people on this forum. They have been very helpful.
Be fearless. What do I mean by that. If it is not working or broke when you find it. What's it going to be when you take it apart and can't fix it. Still broke. But I learn something every time.
Last but not least educate your self. Terminology is every thing in the navy and in the sailing community. That is where I started. I think everything went to hell after Bow, Stern, Port and Starboard.
Good Luck with your new family member. Now grab a screw driver and open that cover and see what is in there.