Well, I am adjusting my valves for the first time, and this morning I just got my valve buckets and shims out. Upon closer inspection of the shims, I realized that they were all different, and they didn't end in a 5 or 0. Instead of being a 175 or 180, they are 178, 172, etc. So do all bikes come from the factory like this? Or did someone adjust the valves already? 'Cause they are out of spec, and if someone already adjusted them, and I have to again, then it's time for new valves and springs.