I have been looking at getting a stand up jet ski. I have two of the sit down and I see what you can do on the stand ups and it looks like alot of fun. I was looking at a 1991 Kawasaki 550, the guy saleing it is a friend of mine and let me take it out and try it. It is really worked over and runs really strong but I am about 255lb and found that I had a hard time with how narrow it was were my knees go and when it stood up found it narrow as well. It was also jumpy in the water and found I have a hard time getting any speed.
After the ride I decided maybe they were not for me.
He then said I my look into the Yamaha superjet. He said it is easier for a beginner and wider.
I have found a 1991 superjet for $750
My questions are is the yamaha easier to start on?
Is this a good deal?
Will it jump on me as well?
Will it handle me weight or do I just need to drop some weight to ride a stand up

?