97 club car will not start until !!!

[BassMan]

I'll try and explain this the best I can. Cart will not start turns over but will not start. so I started checking what I knew fuse, fuel, changed the plug, nothing....then the spark... I put a screw driver in the plug wire plug and grounded next to a bolt and started getting low arc to a very strong arc, put back on plug fired right up. This has happen a few times now and after using the screw driver to get a arc it will start right up.....Any thoughts...