In Reply to: Spark checker posted by Rod on March 02, 2018 at 18:22:07:
The primary cause of a weak spark is a weak battery. Charge it & check it per tip # 49.
While it's charging, dress the points, put a dab of lub on the cam and set the gap: .025. Don't lose the little clip under the rotor.
Then, because that will only take 10 minutes, remove both battery cables and clean the post, ends & connections bright & shiny.
If that doesn't work, post back.