“Modern 2-stroke oils are a vast improvement over the old formulations.”

Electrical issues

: I have a 1978 Triumph T140 with stock points ignition that has lost spark. I ran the bike a couple of summers ago with an old, possibly highly sulfated, battery. Since it’s a kickstart bike I didn’t need the battery for starting. Anyway, I started the bike and began a short ride. About 5 miles out, I lost spark and ended up trailering the bike home. I parked the bike, rode others, and haven’t done any troubleshooting since that incident but would like to get the bike going again this spring. I guess my question is can major damage