It can be a bit confusing, they used the 2F0 numbers for several years. In 78 the they used a 2F0-100xxx for the E and SE, In 79 they used 2F0-150xxx for the F and SF, They also used the 2F0-250xxx for the SF as well as the 78 SE and E Special II, The 2F0-xxx was used for 80 SG.
So depending on the year and how close you look at the year to VIN lists it does get confusing.
There are several list out there. The one hmusket links is just one and isn't quite as well defined as others. The one I like and seems more informative is up in the tech section. It has several pages and list bikes as to where they where shipped.
Simular numbers may have been on bikes sent to different places. Some never left Japan, some went to Europe, some to Austrailia, One year they had a French set of numbers.
After all these years and how they get shipped all over now, numbers that went to the USA are all over the world. Lots are being sent to Europe and Austrailia.
This helps add to the confusion.
Add to that after the early 256 engines, Europe got the 533 engine, the USA got the 477 engine. Some places got different options, and this effected the wiring diagrams.
Some got two smaller front disc brakes, some one larger disc.
In 80 the USA got the TCI, other places never got the TCI and had points well past 80.
As to the carbs, they did major changes every two years, some smaller changes every year.
Lets just say that thier is a lot to learn about these bikes. I learn something new all the time. Even people with 30+ years of working on these do now and again.
It's not just a bike, it's an adventure.
Leo
