A friend of mine has a 2000 Xr6 Mercury that is doing something really weird. The motor will start fine when he first gets to the lake and runs well. But, if he runs up lake and then shuts it off for twenty or thirty minutes it won't start without pumping the bulb and choking it. Even then it is really hard to start. He has almost been stranded the last two trips. Also, when he filled it up with gas the tank built up pressure and spewed gas out of the overflow vent.
Can anyone help?
Mark