Valve Lapping: I'd assume that the valves could use a good lapping at this point since the engine is apart. I was looking at kits for lapping, but I can't find any information on compressing the valve springs (which I assume needs to be done to properly clean). If anyone can give me some points on this, or recommend a decent tool set for this procedure, I'd be very grateful.
Piston Rings: Can anyone tell the condition of my piston rings. As far as I can tell, they seem to be in good condition, though I'm concerned there may be some relation between them and the scratches in the cylinder wall.

Apparent scratches in the cylinder sleeve. Are these deep enough to warrant honing?

Cylinder wall discoloration. Does this look like "blow-by" to you?


Close up of the left piston and piston rings. How do the rings look to you? Its hard for me to tell what's good or not.


Right cylinder valves and spark plug. As you can see the bike was running very rich, or possibly burning oil. Hard for me to tell at this point.

