I changed the oil and filter with Amsoil, and the pressure came up. Maybe it was the filter. Still makes me made that they drove it in instead of trailering it in. I talked to the salesman and he sadi take it in and have the dealer check it out. The owners manual says it can be as low a 6psi when hot, and thats ok. Maybe being a roller motor, it doesn't require as much pressure. I don't know, but will find out. It runs good ( very good) I romped on it a couple of times after the oil change, and it is wicked fast.