Hey Guy/Gals

I just sold my Yamaha 1200R last week and was looking to purchase a 2000 Seadoo XP. There is one around the corner from me on the road for $3500. The guy says it has about 50hrs on it but hes not sure. It looks really clean and taken care of but who knows there is no hour meter on those I dont think.

My question is how can I make sure the engine is not going to die on me and it really doesnt have 150hrs or somthing crazy. And also is there anything I should watch out for on this ski?