change oil @ every 1200 km tune it after 2000 km's adjust its chain after every 2 weeks and one thing more initial running stage is very vital drive it for atleast 600 kms with one person on bike @ speed of 40 to 50 km/h. change first oil @ 300 km.
If u apply these things to ur bike i assure u bike will not disappoint u.
These are 70cc bikes with low build quality, for best care.
Tune at 1000Kms or 1500kms max.
Oil change at 1000Km sharp!! - (make sure u buy the oil from a good large oil store, donot buy from mechanics, they usually have 2 no. oil.)
Air filter change at every tunning - with original DYL one.
Donot throw pressure water dirctly on ur plug ang handle switches and iginition swtich or u might face stupid poblems.
Polish ur bike 2wice a month.