youl need to tune and rejet the standard carby pretty much after run in when it starts to get ridden harder normaly a flat spot will accure or just get the oko 26mm cabie and your pretty much set straight away you will also need a uni filter and oil it after every ride and wash it after every ride...
you will need a new chain after about a month as the stretch and so on...
keep your chain/new chain oil as required...
run 98 octane fuel...
retune front forks with new oil and spacers if needed,pump up rear suspension if needed...
the stock tires will last about a motnh at the most then get some good kenda,michilin,dunlop etc etc tires...
clean up the inlet and exhaust minifold for better breathing and clener exhaust flow...
that should keep your bike sweet for a while if you keep it maintained