The fuel line from the tank to the rail is unidirectional. Not installing the orange end to the fuel rail can result in a kinked line and decreased fuel flow. I installed my tank 3 to 5k miles before this happened, but I normally ride well above 5k feet. The failure happened at sea level after around 30 miles on the throttle stop.
This was my mistake, 100%. Just a heads-up for anyone out there who doesn't usually bother with reading the directions too carefully. I found a used cylinder and piston on this board and the local Yamaha shop did the swap for a very reasonable price.