I recently rebuilt a 2 stroke engine from one of those old Chinese kits. I replaced the piston, cylinder, needle bearing,clips, wrist pin, rings and all gaskets. the motor has about an hour of run time so far. I took the head off to look inside. It looks like there is a lot of cylinder scoring. I am confused why it would be since it's running a 16/1 ratio. I ran my finger inside. Its still really smooth. my finger nail doesn't come close to catching. It just seems like a lot of scoring to me.
thanks
thanks