I just got a sinking feeling from a phone call I got from my son. He took the seadoo out and put the wrong oil in the tank. He put regular outboard 2 cycle in it. It is the DI and takes synthetic oil. He called my after saying it wasn't running right. He said he went to pull some buddies on the tube and it didn't have any power. It stalled out a few times. I told him to put it back on the trailer immediately and bring it home. Now my question is how do I fix this? Any suggestions would be a great help. Am I screwed??