Dan,
With all due respect-
It clearly says "1st edition, May 2005" on page 2, in English;
https://www.manualslib.com/manual/581989/Yamaha-Yz125-V.html?page=2#manual
It's the 1st edition manual for the 2005 model.
EC010010
YZ125(V)
OWNER'S SERVICE MANUAL
©2005 by Yamaha Motor Co., Ltd.
1st Edition, May 2005
If that doesn't convince you, lets take a look at an image from the manual you linked to, of the carb float that you linked to in the manual;
This shows a carb that has 1 completely connected float.
Not 2
separate floats like my carb (Mikuni TM) has. Obviously this is a different carb than the Mikuni TM.
Here is the image of a carb for a 2005 yz125;
It has 1 connected float.
2 different carbs, 2 different manuals, for 2 different bikes.
The above linked manual (again, thank you for the time in digging) is not correct for my bike.