This is my second 4 stroke, and the local dealer said to wait till I have about 10 hours on her. Theres only 5 hours on the bike now. Should I be concerned about the valves yet or not ? I"m probably only going to put about 5 more hours on her before parking it for the winter. Hard to ride that much working 6 days a week. Also, I"ll do it my self, I just wanted the dealers opinion, along with your thoughts..