rotary shaft

My 1997 Sea Doo SPX was running great for quite some time. One day after a couple of hours on the lake it just wouldn't start. There was no big noise or anything to make me believe something had gone wrong. The photos show a small nick out of the edge of the rotary gear and several teeth...

Hello all i Have a 94 spi and I am trying to diagnose an issue where it idles but dies as soon as throttle is applied. I am checking the rotary shaft and gear next. But I am wondering with the oil pump and rotary cover off, should I be able to spin the engine by hand by spinning the black gear...