ORIGINAL: All Day Dan
w8ye, Should Bowman change his little instruction sheet to take into consideration the cylinders that are lined. I used 400 grit paper on mine. After a couple of flights the compression is very high. I hate to think that I trashed the cylinder. Those things are expensive, and worse, may not be avaiable any more. Dan.
Some people want to run a hone in the cylinders and hone them until the cross hatch marks are consistent top to bottom. This is not going to work on our small engine.
Frank is talking about some 400 W or D in your fingers and just scratch around in there a little to take the glaze off.
I have not been doing anything to the cylinders that were smooth to begin with and the rings usually seat with the first tank.