I sort of expected more form a pro so was very dissapointed by the video
Two fundamential principles totally wrong
1) If you change the fuel then you need to readjust the carburettor to suit the fuel being used
2) while water will be adsorbed into fuel according to the laws of partial pressure variations that amount of water is neglegable compared to the very large volume of water that will condense in the tank from the humid air when the temperature drops or as most people will know it DEW and that is determined by the volume of humid air in the tank and not the amount of time the fuel cap is off
And that is mechanics 101 stuff, hopefully taught to apprentices in their first week .
Very very disapointing indeed so her videos now go in the "do not watch list "