You were looking at a all around spark plug reading which means nothing ever!
A correct plug chop is to put a new plug-in after bike is fully warmed up and takeoff and run a 1 mile at full throttle run, shut it down and put it in neutral so unburnt gas can’t be thrown on the plug!
Then chop it up open and read the ring way down below, you don’t have to chop it off you could read it with a magnifying glass,
Problem you can’t do that with the automatic clutch Moped that will keep throwing raw gas on the plug even after you hit the Killswitch for certain amount of time
so most Moped plug chops don't matter at all,
You got a learn to tune by ear and feel and going up hills and such,
I’m lucky because I have a 1.3 mile private Road that has two small hills so I look at the speedometer when I hit the first hill and when the second hill hits I know where I’m supposed to be at on stock, stock modified, kitted super street and full-blown kited speeds,
Ya sucks that most people don’t have what I have which is basically a small race track to tune on, I also got 4.5 mile straight away that’s 50 to 55 mph limit St route that I could go full bore on to tune for temperature,
Bring in here if you want to tune it for a super street!