You should be able to see an arc across the electrodes when it is trying to ignite?
Removed it (and the ignition transformer) and there is a nasty crack across on part of the electrode. Connections were also black and brittle. Unlikely to get a good spark, I think.
Black transformer box is bloated and puffy. I'm guessing it is the original from 1999.
That fracture is likely to result in the HT generated by the transformer arcing to ground rather than across the electrodes where it is needed, definitely needs replacing









