I got one that leaks a bit after an hour or so.. does not seem to raise oil level..
I always turn the gas off or try to.
And no, I will not fix it, sooner put on the Webers, and get rid of the airbox..
Bucky if you want to find the culprit, pop your drain hoses off and put paint can tops under to see which one leaks..
Them stickers, always sold at big bike events.