Yes, I saw people quoting those figures, but tracked down the (technical?) service manual, and saw the 28 PSI figure some people used, while others argued 10 - 15%, without citing sources.
For how many seconds did you test?
"to do a compression test 100% right the engine needs to be cranking at its normal speed, if you have a weak battery or starter then you wont be cranking at full speed."
d16 compression? - Honda-Tech
I replaced the battery between the first test (140, 140, 130, 130; 3 strokes) and the second (135, 141, 151, 149; 5 strokes). I find it strange that the first two cylinders tested approximately the same, while the second two increased 19 - 21.
Should I do a leakdown test?