Bruce,
1. The piston appears to be in very good order (no scores) as does the other side of the cylinder you can see thru muffler. The muffler is very clean with all passages open.
2. The fuel would be approx three weeks old and I mix it with Husqvarna 2 stoke oil at 25:1
3. There is a good spark when tested outside of cylinder. Although the plug becomes dripping wet when flooded.
Regards
Uncle Grumpy
