ThatTowerGuy has a limp wrist, so that's his issue. LOL. But honestly, I have seen it happen once on his ski after being pulled from the inlet. Ski fired up, when shut off, stopped abruptly, and you can here the prop still spinning.
I have seen it a few times. Normally when someone is porting the transfers to thin. This started as a small hairline crack, hit it with a dremel on low speed, and exposed this lovely hole. Tig welded and back into service.
I have a 772 flat top Thrust motor sitting in my office. 62t/61x with an ADA head with flat top domes, new pistons and crank, fresh build. Can be sold as a short block, or RTR with dual 38s, V2 reed, and 62t electronics with a lightened flywheel. If interested PM me for pics.
15 Dollars at Home Depot.
Depending on what hose size you use, they are just a 90 degree threaded pvc elbow with a pvc lock ring on the other side. You can change size and placement, and even locations. You can use the stock holes, but you will have to match the size, or make a cover...