Pulling the engine out of my 2000 Sea-Doo GTX 787 RFI, took off the exhaust and intake manifold and found a ton of what I think is sand in the intake ports going to the cylinders. I also took off the head cover and there was a ton of buildup and sand, which I assume came through the cooling lines. There's also rust in the cylinders and the motor is hydro-locked. I'm gonna check the intake grate and see how all this stuff got into these places and prevent it once the ski is back together. Got a lot of work ahead of me, might swap the engine but might strip it and clean it we'll see. The reason for the post is to ask if anyone has been in a similar situation, what was your course of action? What do you recommend based on your experience? Thanks in advance!