Super 8 150 2014 Won't Stay Running

[FCSSensai]

She starts, idles fine, runs fine. Will run 50 mph for a hour to 4 hours then suddenly she will start dying out, and cut off completely. She then will crank but not start, and after a day or so will start up just fine like nothing happened then the cycle continues. Any advice?

[jeeves]

She starts, idles fine, runs fine. Will run 50 mph for a hour to 4 hours then suddenly she will start dying out, and cut off completely. She then will crank but not start, and after a day or so will start up just fine like nothing happened then the cycle continues. Any advice?

Check for spark when it happens again. Could be something wrong with ignition.
Also check if fuel getting to the carb.

[FCSSensai]

Check for spark when it happens again. Could be something wrong with ignition.
Also check if fuel getting to the carb.

In an effort to help those who are stuck, my issue wound up being what many complain about...Venting System Failure. My gas tank is not venting fumes properly, and when it gets warmed up over time (especially at WOT) it chokes the fuel supply due to negative vacuum pressure in the canister. Pulling Gas Cap off allows it to start right back up, and as a permanent fix, I just secure the gas cap as normal, and then twist it as far as I can loose w/o unlocking it. Vents enough to not stall, but saves me the hassle of drilling a hole in it.

Hope my Fever Dream of working on this BS for two weeks only to find such a simple solution at LEAST helps someone else who's stuck.

[Iahawk]

thank you for sharing your solution. Glad you got it figured out.