What do you mean "can pul all the plugs or 1 at a time"? Take out the plugs too, or just the wires? Stop at 2 cycles and start over? Or pay attention during the ignition at 2 and stop at 5 or 6?
go watch a video youtube
you remove the spark plugs to do the test
either 1 at a time or all 8
when you spin it over the quage rise thats 1 cycle the next cycle will push it higher
a high number after 2 cycles is better then get max reading
you should watch a 4 min video before you start
come on steve get involved research is how you learn