Join Date: Nov 2009
Location: Lander, Wyoming
As Bill10 showed, the last suffix number has Nothing to do with the year date.
The OEM Service Manual which I have is 99924-1384-07, covers 2008-2014 model year bikes. Add -07 + 4 = -11. So I was gonna' suggest that #99924-1384-11 could have been the LAST Printing.
But since Bill10 has a 99924-1384-10 which covers up to 2016 model year.
There must have been an additional revision between my manual, 99924-1384-07 / 7th Edition (0) : Apr. 12 2013 and his.
I am not aware of any mechanical changes between the 2017 & 2018 model year KLR's.
Modify at "YOUR OWN RISK"!
Still riding my 1987 KL650-A1. 84,000+ miles & counting