I've been searching the
internet for about an hour and I haven't been able to find out anything on a 2.5..... are you sure it isn't model BF25? The BF 25 is
water cooled. I looked at a listing of all their
water pump kits and they don't list a BF 2.5 at all. That said if it is a 2.5 then it must not be water cooled. Which brings me to the next question. Could it be a
2 stroke? They are
oil cooled. The 2.5 isn't on their list of replacement props either.
Not doubting your word. Just thinking if I can't find it on the
internet I must not be asking the right questions. Or possibly it wasn't imported into the US. I'm tempted to call American Honda and to ask them myself.