Welcome to the forum. I see you have two posts. Both are posts asking for advice on the boat (or PWC) and motor. I'm really not trying to sound rude, but this forum is filled with all kinds of info that will answer so many questions you might have. If you have a specific problem, it would be great for you to make a thread and solicit advice.
All the info on maintenance, winterizing, compression, pumps and maintenance... It's all here. We also have a search engine. I'd suggest you become familar with the forums topics and enjoy reading the thousands of posts some of our experienced members have shared.