[Water Warrior 2]

A dry compression test of 145 psi should be a fair indication of ring and valves sealing. A wet test will no doubt look even better. Your bike really hasn't that many miles on it to start worrying about taking it apart. The valves themselves should be a little noisy. When they stop making noise is when you start looking for a problem. Personally I would just ride it and enjoy the fall weather before it goes away.