Service department for Yamaha ONLY!
I brought my Honda Rebel in because the engine was dying at a half a tank of gas. It seemed like a petcock problem and easily diagnosed and fixed by any mechanic with the proper tools. This shop looked at my bike and did not find anything wrong with the petcock and thought that routine maintenance would be enough. $140 bill later and my bike died once again at the next half of a tank. I called the shop back to see what they could do for me and the answer was not encouraging. The mechanic, Tom, noted that since the motorcycle is a Honda, that they do not know enough to properly diagnose a problem like mine.
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In short, if you have a Yamaha this shop might be alright, otherwise you should go elsewhere. I will not be going back to Pasadena Yamaha.