Yep,
Keep the records of oilx2, filters, belts, rollers, tires, battery, bearings in the owner's manual, if space there. If, not, like the Suzuki - on the last pages of the big factory service manual.
Not so much for the next owner - because he'll probably never pull the dipstick - but for me.
Actually, since I don't seem to keep scooters very long - all my servicing is probably wasted $.
I break in per the manual and change oils so it will be a good runner years from now - but I haven't kept any for years but this LIKE200i !
Crazy.
Stig