Argh, blue exhaust smoke, so I checked the compression, not the best.

Forcing compressed air through the spark plug hole in cylinder #2 (piston at TDC) indicated that the exhaust valve was leaking. This is known as a leak down test.

My 2F engine isn't sounding too good and gave some bad compression results.

Compression Gauge

This is a home made adapter which allowed me to hook the air compressor up to the spark plug hole thread.