I have recently become very interested in airheads, and I've been doing a lot of reading online about them. I have a couple of questions about valve covers that I can't find the answer to online.
The valve cover design changed at some point from this:
Is the older one what's called a 'bonehead' ?
Did this change come about with the introduction of the /7 series?
Are the two designs interchangeable? I like the older one much better, but as I'm shopping for a boxer of my very own, I wouldn't want to pass on a good /7 just because the valve covers aren't the ones I like.
thanks for any insights