Re: Speeditwin Spark Plug Choices

[mini-motors]

I do not know for sure. All I did was to Google "champion 0 com spark plug", and a conversion chart on the Antique Small Engine Collectors Club came up. That led me to looking at the W10, which was corroborated by the Champion site. I did not look closely at the specs for each.

My concern stems from working a motorcycle parts counter, and having to explain, almost on a daily basis, why it’s important to use the correct heat range plug, and that deviating from this won’t cure a jetting issue. There are so many idiot bikers out there who change over to a "hot lick" aftermarket exhaust and free flowing air filter, not re-jet, and wonder why the bike runs rich or lean.

I was used to repeating myself, as I am a parent. But I don’t work there anymore, and am much happier.