There is no port to flush the engine on this ski. I think that you can buy a flush kit for it but here is what I do: I take the water inlet hose apart at the fitting where the hose goes over the driveshaft. I wish I had a picture of it that I could post so you could see it. I then install a flush fitting that connects to a garden hose and I'm able to flush the engine.
After flushing, I remove the flush fitting and reconnect the hose and tighten the stainless steel hose clamp. I'll try to take a picture over the Memorial Day weekend and post it.
