Boiler pilot not lighting up
Clean out the open end of the pilot light to make sure there is no debris interfering with the flow.

I have some ventless gas logs that if I leave off completely off for a season or two will get clogged and with spiderwebs and sand from the old masonry. Cleaning the pilot by blowing and brushing from the open side without any disassembly has fixed it for me.

(reposted from comment)