I didn't absorb the weight in those specs, I was looking at the engine size so <10 lbs it is. Probably in the .40-.60 range then
Doesn't hardly seem worth it. I will have to try it and see someday on a stand.
ORIGINAL: RCIGN1
You need a little ring gap..SuperTigre found that out a while back...
And I think some of the very early G26s had the same problem, no gap, the ring expands and tightens up against the cylinder wall, makes heat, expands more, seizes the engine...I think the old rule of thumb minimum is at least .001 for every inch bore size...
My used 25cc homelite had .010 end gap when I tore it down... good thing as thats the smallest feeler gauge I had!!