Here is the bottom line -
forget the measuring stuff - -run it and listen to it - if you can't make it "four stroke" -it is to fu----in hot!
Measuring tells you nothing except on twins as a balance comparison -
the engine should never slow on uplines -never - never .
Tryinf to determine setups on a single using a pyrometer is -in my book a complete waste of time -- fun maybe - but a waste of time .