Took my 10 in today to get the valves adjusted and some new oem sparkplugs. They are charging me $450.00 Does that sound about right? They said that it is an all day job. I said well, After 5 years I guess I better dump some money on the 10 to keep her in good shape. I didn't expect that much but it is from an authorized Kawi service center so I hope they know what they are doing.