I'm trying to revise a 1987 250es. It currently has no spark and I'm unsure of what to do I tried stripping back spark plug wire I put on a different plug that I knew was good and I know the neutral safety work. the battery kind of held charge for an hour or so ,I determined the starter doesn't work however. but I'm not quite sure what my issue is is maybe the CDI box bad? Im new to CDI ignition, I have only messed with points style ignition. This 3 wheeler has been sitting about 2 years.