Zero, I commute 92km everyday and use it all over the place on weekends.
When my 2yr warranty ran out I started servicing it myself every 12 000km. And by service I mean i drain the oil and replace the oil filter and clutch filter. That's it.
My previous Honda was a CBX250 Twister and I put on 140k in 5 years, only reason I retired it was because I cracked the cylinder head, ran the bike one day on low oil at 160km, stupid me.
Love Japanese bikes as an every day commuter