Weird noises, hard start after overheating

So I finished rebuilding my engine on the bike, I had been riding it around breaking it in. Yesterday I was riding it and it started to bogg down and then it died, couldnt get it started, let it cool down until and had to up the idle just to get it home. Checked the spark plugs and 1/4 lean and 2/3 rich. Today I went to start it just to see how it sounded and then I got these weird noises. They sound pretty bad . Im attaching a video of the noises hopefully yall can help me pinpoint what it is.

I'd check the timing chain tightness, and try to balance the carbs. Your starter clutch is slipping, making the odd sound. What engine oil are you using? If any of the "Car Oils", they will make the wet and starter clutch slip.