leak

Hey guys, so I went down on the bike a few weeks ago. Crankcase cover on the left side of the bike was cracked and leaked oil. I replaced the crankcase cover and the gasket. While putting the new cover on I accidentally stripped one of the top right Allen screws. I ran the bike and I saw no oil...

after an oil change today i ran the motor for a while to check for leaks, i noticed a few drops of water leaking out of a tiny hole in the very bottom of the muffler. i have no idea how this hole got there, its no bigger than the thickness of a sewing needle. im not too concerned about it just...