Alex111
Congrats on the purchase of the Hunter 25. First there were two different styles of the 25 the first being sold in 1973 thru the early 80's. Your boat model was built around 2005 as a replacement to the 260. If you would go to boat information, pull up Hunter and then click on the 25. It will include both boats. Go to downloads and pull up owners manual for 2009 and reference page 44A which will give you an exploded view of the boom. The first part is basic junk but the later is the meat of it. If you have trouble figuring the mast raise system, I am the one who designed that and can help you with it. Feel free to contact me by private message and you can go to the upper right and click on your forum name and follow it for a private email. I was a dealer and much involved with all the small boats. By the way I knew who bought the very first Hunter way back when.