Spark Trixx 2017 The jet ski has 315 hours. Everything was serviced before at 280 hours. All seals and bearings have been changed. And the small shaft, the impeller with its seals. Spark plugs, oil, and engine sensors. Additions to the jet ski: Original Riva seat. Complete original Riva exhaust. New bilge pump. Ibr cancelled. The jet ski is, God willing, ready to go and have fun in the sea.