I'll have to buy a compression gauge sometime. I use the old fashioned hick test where I put my thumb on it and pedal. If it pops off, it's great. ;o) (but if I had to guess, it'd have to be over 150 lbs at least)
I can tell you, though, I'm 290 lbs, and standing next to my moped & kick starting wouldn't be enough to start it. Too much compression.
I've got a wedding and baby coming, so it'll be awhile before I get a chance to buy a compression gauge.