Lube everything with grease and WD40 every two months, change air filter every 10.000 kms, check tires every month and you will be good to go for thousands of kilometers.
Where so you put grease & WD40? I'd do it if I knew where to put the grease.
Grease: Read the manual, there are several pivot points to be greased on every scooter, including rear swing arm and steering column. I also used it to lube kick start lever on A125, side and center stand, locking mechanism of the seat and a bit in all locks. Also, battery contacts should be greased.
WD40: I use it on all electrical switches because my scoots are in open/rain 365/24. Starting switch, lights etc. I also use it inside line tubes (for example, for A125's rear drum brake) and to lube gas throttle that tends to freeze when it is moist and below -3 - 4 C, especially on Agility. Also on all electrical contacts and spark plug cap.