2009 TE250 Unknown Engine Problem!

So I took my bike out today, nothing out of the ordinary. I came to a stop to wait for a buddy that was behind, he caught up and we chatted a little.. We were having fun, I revved my bike like 2-3 times and we took off.

After about 1 minute, I was going in a straight line when suddenly my bike stalled, it lost all power and I heard some grinding noise. I came to a complete stop and tried to turn on my bike with the electric starter, I heard some more grinding noise and I didn't start. I tried to kick start the bike but the kick starter became very hard/stiff. I've kicked started the bike many times to notice it became way harder/stiffer to kick.

I'll attach a video of what I'm talking about:

I would start by taking the large clutch cover off and seeing what is going on.

U P D A T E !

After a couple of months, I've gone around and started to take my engine apart.

I soon discovered it was the Camshaft Exhaust bearing that disintegrated! I also found some damage on the exhaust Camshaft sprocket/gear. I could only find 6 balls and I think the bearing uses 8 balls so I might need take the clutch out and see if they went onto that side.

My same reaction!!

D O N E !

Camshaft Exhaust Part #: 800099694

I have an extra camshaft bearing if anybody is interested, $10 buyer pays shipping.

Bearing (12x28x8) Part #: 800034317