hello everybodies
i'know that are many discussion abouth sparks plug but i dont have found anythings, and i've a little problem.
today i've restarted the racebike: a cb 400 four but whith stock engine, after 10 years, and now i must change the spark plugs.
now I've tree set of new plug, all are Ngk and the code are:
D8ea
D9ea
d8es-l
there are resonable difference between these tipe of plugs??
what types that you used?
