Purchased a RX DI from an individual I finished installed of a new rebuilt engine. The engine cuts out until about 4000 RPM and then ran good on two separate trips to the water. It ran for about 30 minutes like that on the second trip and then would not rev over 3000 rpm and we limped home to the dock. The ski has a350 hours on it and about 1 hour on the rebuild. There were no flashing lights on the dash.