SlimJim said:
I am sorry, you were lied to and a huge big lie at that. You were buying the boat thinking it had 671 hours on eack engine and they have 1300 hours? Your resale value just went down the toilet! What if you need to unload the boat or just want to unload her? You will have a much harder time selling her at 1300 hours then 671 hours. Thats like 5 to 7 more seasons run on those engines. Good Luck. They really should give you some money back.
I agree, seems many are telling you "Oh well, it is a great deal, use the boat and be happy, regardless."
Double the hours? That is ridiculous in my opinion. There are just not a plehtora of 4s for sale with those kind of hours, maybe in a few years people will be less wary when they see high hours, but I think alot of people move right past a boat with 1000+ hours on it. Even so, if you put the majority of those hours on her, well you can be totally fine with 1000+ hours as you were the guy to maintain it.
Since you asked here is what I would, personally do:
1. If the original owner send you the records, proceed if you are satisfied
2. Get a comprehesive engine survey from an Auth Yammie guy, your friend?
3. If both things check out, figure out a fair depreciation on those motors and get the cash back
If not, I think you win this case, easily in small claims court. The real question is going to be, did they know? As ElyseM pointed out, if the original owner has anything to help you along those lines, that will help alot.
That said, it looks very clean and it sure is a super boat, with good motors. Get the deal adjusted and have fun. I think it would be hard to go back to the smaller boat, now that you have played around in the 300.