Hi, I'm not very skilled when it comes to maintenance. I left my GPZ for service recently hoping that it will help with some of the problems I had in last few weeks. Basically when I reach 6000rpm bike starts to choke and loses power. I think that this is down to filters but may be wrong.
I paid £130 for service but it didn't include changing air filter and spark plugs (which in my opinion is pretty basic and should be covered), anyway bike did over 7k miles since I bought it and this was first service.
What would be your guess? If you think air filter and spark plugs will help I can do it myself, if it's something more complicated I will take it back to service. Thanks for any advice