I have a good friend who owns a 700 twin about 2 yrs old, he has had it back to the dealer 2 or 3 times to be fixed, but it has not happened yet. His problem is, after a period of time the crank case fills up with gas. They have replaced the needle and seat in the carborator and also replaced the fuel pump. In my opinion it is still one of these two. Anybody have any ideas???