Please excuse me if this is a dumb question, but I got to thinking about this and thought someone might know.
Way back when I used to race cars, we always used small copper washers on the spark plug to "index" it so that the open part of the electrode faced down in the cylinder (wedge type combustion chambers). It was a trick that was suggested in Hot Rod magazine back then that was supposed to ensure more complete burning of the charge. I can't really admit to being able to tell a difference, but it seemed logical.
What I'm wondering is, would there be any benefit to doing this on a bike? If so, do you think be able to notice it outside of a dyno, which way would be the best for electrode orientation?
I'm kind of thinking that it really doesn't matter on the bikes, since most (or is it all) are hemispherical chambers, but I was wanting a fresh opinion on the subject.
What do you think..?
-Kurt