Hey all. Don't know if anyone else will find this useful, but I have an 87 Canadian 2ME model here in the US with a KPH speedo, which of course is not terribly useful. So I PhotoShop'd this overlay for a transparent sticker and put it over the KPH speedo. Here it is if anyone else finds it useful.
The horizontal blank line on the left lines up with 0 KPH and the one on the lower right lines up with 200 KPH. Of course, if you're speedo is not laid out like my 87 then it's no good for you.
http://sevans.venomouspenguin.com/pics/TZR_speedo_Image_mph.jpgJust save it and print it on transparent sticker paper.