2002 Seadoo Bombardier GTX 4Tec 155 4 stroke 3 cylinder gasoline engine 155 hp.No mixing of oil requiredClosed loop cooling system.Ski has 313 hours - used less than 15 hours per year. Ski has a brand new impeller and wear ring with one outing on it .Has not been used at all this year I used it once last year.Top speed 55 Mph rangeHas lots of storage space Comes with the trailer its sitting on Selling because its not getting used.Clear title for the ski Ski is currently in Waterford.