I know I'm making a total stab in the dark but I gotta start somewhere, before I go to my local bike mechanic and say, "Here, fix it." My bike that I had running two years ago went dead on my last ride which then sparked a total strip, sandblast, and re-finish. I have a video attached as part of the last ride. It was a 9-minute ride; it was running fine and then suddenly it didn't. I did shorten the video to two minutes so you can hear it start up, you can hear it run at a 8X the normal clip, also it running at regular playback speed before it died
I spoke to my local mechanic, he was suspect that it was a carburetor causing that, since I told him also about the issues I was having with the overflow and such which were remedied with the original carburetor. Other circumstances occurred where I needed to buy a new carburetor as it was so I now have a new carburetor on it.  Still now I've got the bike together and I'm still stuck with the same situation where it's a non-running bike.
 With a new carburetor (other than setting the air jet screw at 1.5 turns out), should I go over everything on the internals of the carburetor making sure that the floats are at 1 inch above the float bulb base and all that sort of stuff?


The only other thing that I can think of is... I don't know what else to think of. Maybe crank seals? 


i.imgur.com/an4f8Pb.mp4

This image is hidden for guests.
Please log in or register to see it.

... it suddenly died. Intuition : Spark related

From the video it behaved as if you hit the kill switch. Did you check for spark? Sometimes an electrical component will work fine until it gets to a certain temp. If it has spark, put a bit of starter fluid in the combustion chamber and give it a kick. If it fires and dies you have a carb or fuel flow issue.