Doesn't start. Fuel level is OK, spark is OK.

Engine was running good after I adjusted fuel level and slowly stalled.
Starting fluid didn't help.
I adjusted valves probably 100 miles ago, it was in 2014. I rode the bike couple days ago and it was fine.
I got fuel level gauge today and adjusted 2 floats, but it was fine after adjustment.
Any ideas? thanks.

I'd check plugs for flooding. I would check compression. Make sure gas cap vents or you can get vapor lock stall.

Compression is 120 wet, which is OK, because my compression gauge is broken and only shows compression of one stroke. It looks like intermittent spark loss.