Should clarify that it only got a squirt of oil from the oil can every 12 - 18 months and turned over by hand every 1-3 months.

The plugs are the original units and are wet with fuel but not fouled with oil or carbon build up. You can wipe the fuel residue of the plugs and it is clear not a black liquid.

With the plug pulled out and held against the block its a strong spark, I do have a new set of plugs but holding off on putting them in due to the small amount of oil in combustion chamber. But will probally try them next.