Hey All, Thanks so much for all you help for the new kid on the block, first moped ever! I was fortunate to find a 78 Free Spirit w/ 700 miles, needed a carb rebuild and horn/light/start switches, and a ton of clean-up elbow grease. What looked not so nice became a beauty.
Question: The spec on the bike says NGK B5HS. I heard upgrading to Iridium might be a benefit, but NGK says they don't make this plug in Iridium. I can get the B6 iridium, but the specs are a little different, they said it runs "colder" whatever that means. What's the best spark plug for this bike please? I know a ton of other factors affect performance, but I'm only referring to the spark plug selection.
Many thanks for everyone's assistance!!!