With just 140 miles on the clock that means it is probably on it's second or maybe it's third full tank of gas and who knows how old that could be. If it is the E 10 ethanol crap the next thing I would do is dump it, clean the rust out of the tank and fill it with real gas, no ethanol, with a double dose of Sea Foam or Lucas Deep Clean. If that does not clear up the dead spot then I will bet you have snot in your float bowl and the carb needs a good cleaning. Did I mention, I hate ethanol and so do our TWs. It is fine for engines that get regular usage and always have fresh refills but it really sucks in engines that sit around for months at a time or in this case from 2013 until almost 2017 with the same fuel. Here is a hint from your Uncle Gar, Look in the tank for the rust I already know is there and after you clean it out install an in line fuel filter. If you do have to tear into the carb then expect to find either some cool looking green crap or some white crud which is the remnants of that deadly chemical called Ethanol.