Firstly , thoroughly clean the points , it can be done without removing them if you’re careful. Ask your good wife if you can just borrow her nail file (the emery board type) and use the fine one only , they usually have more of these than we have spanners , a few careful strokes should get them clean enough.
Finish by passing a clean piece of card through the points.
All being well you “should” now have a spark , always test for one direct from the end of the HT lead , you can test for a spark with the flywheel in any position.
Try this and report back.
Andy.