a standard spark plug should last 10-20K KM...those better/performance type should last 30-50KM....
Spark plug is wear and tear part...
Also life span of spark plug depend on your engine condition...if your engine makan engine oil / wrong tuning then your spark plug will wear out faster.
We are going to plan again a "Touge". For those who missed the previous touge & also for new members, this is where you going to try out ur monsters skills... hehe.. For those who is Touge King.. BRING...
From http://www.badboyben.com/?p=4429: In hindsight, it was probably not a very clever thing for me to participate in Zerotohundred.com's Time To Attack, due...