Here we can see a brown or maybe red?... and a white plug.

The brown plug was in the head for a full season. (2007)
Now today I replaced the (2007) plug with a new one. Why? For fun.
Both are NGK BR8ES
One have a full season of riding (brown)
The other one (white) : 2 service hours.
So I have no question to ask tonight. Maybe tomorow?







