someone briefly mentioned a broken skirt falling off inside and chewing things up. bg joe i think. i'm helping quay and friend with their "power king 80"...i was there when it was delivered & if i wrote a review of overall quality on the kit out of the box, it would get a "mostly below par." anyway, they tried to re-seal the jug gasket ahead of time while they wait for the bicycle to arrive...i wasn't there i promise. in the process, one cylinder-skirt on the casting was cracked (both ends) and one ring was broken. i have a spare ring if it fits. i applied light steady pressure to the skirt with a piece of wood til it cracked off. i figured it would break off all the way back to any weak spots and it did just that. the middle third of it is still there & it looks mighty clean, metallurgy-wise. pics tomorrow when i get back over there. i'm tempted to try it & i need to know...before things got crunchy, did the engine run ok as far as compression, leaks, etc?