Just a quick one, in case anyone, apart from me, is geeky enough to wonder about the differences between models for different markets, my 'General Export Type' headlamp rim has the adjuster screw at the bottom, so it adjusts up and down but not left and right.
I always thought mine was the wrong rim, as every other CB750 Ive seen has the adjuster screw at the side. However looking closely at my parts book there are two different headlamp pictures (three including the type with a separate bulb) and two different sets of numbers, and sure enough, mine is correct for the 'General Export Type' version.
I'm guessing that while Honda knew which side of the road UK, European, Japan and American market bikes were going to be used on, and so which way they should dip on low beam, the general export bike was non commital, and has a different sealed beam unit part number too. Perhaps it should ideally be ridden in the middle of the road.
Edit: It also gives the code for the Australian market for that headlamp, and checking pictures of '70's Hondas on eBay Australia sure enough, I can see that adjuster screw at the bottom - why? Surely they drive on the left, like the UK - were they thinking of changing? Do they have different 'dipping' rules? In any event if I need a replacement / spare sealed beam unit I know where to look.