Dear Brother,
I like your Thread a lot as well as scanned manuals posted, my first bike was new Sprinter back in 2006, now I am using BML 70 cc, I recommend to keep your bike clean, drive safe 40 to 60 KMPH use helmet, follow rules and keep/stick to originals parts.
further please update on fuel millage after service as mixture is adjusted.
regards,
Umer