as you live in Lahore
many good mechanics are in Lahore
I myself went to Lahore to Sharif Autoes Mcleod road 2 times just for tune up
i don't know about Afzal Traders but some Pakwheelers with YBR from Lahore praise him
according to my personal experience you should try fast speed after 500 and when you go to Mechanic
ask him not to open carburetor,
and i am sure Amjad brother would have advised you to change first at 200 km
2nd oil change at 600km and then at first tune up at 1000 km
i also strongly recommend this