Maybe just time to have a shop take a look before storage?
Sorry you werenāt able to fix it. Sometimes putting a little time between you and the problem will cause you to come up with some new ideas. The problem that causes a āNo sparkā is usually pretty easy to find. The basic principle of operation for the spark circuit in cars hasnāt changed in 100 years or more.
I just use a straight pin for that. You know, the little pins that come with a new dress shirt.