I recently purchased an ocean kayak with this 6 hp 2 stroke hangkai motor. Had it in the garage for the last couple days no problem. After trying to crank it over, it is leaking engine oil? gear oil? something else? from near the top "OIL LEVEL" bolt. There is a small hole there as well as another bolt right next to it where the oil seems to be coming from. It looks like there is a little water in the oil as well. I am new to boat motors in general and am struggling to find resources on anatomy here. Can someone tell me what that hole and bolt are and how I can stop them from leaking?