How much dealer service does a 2012 Zuma 125 REALLY need? I'll have the initial service at 600 miles done by my dealer, but beyond that, I'm very reluctant to spend money I don't have to.

I ride very moderately, mostly to work and around town errands. I can do oil changes, etc. I think Yamaha wants the valves checked every 2000 miles. Is that really necessary?

Thanks!