The motorcycle market’s not exactly flush with used Moto Guzzi Stornellos. In a month of searching, we found but two on the market, both 1966 models and similarly priced at $2,600 and $2,500. The $2,600 Stornello was an original survivor showing just over 2,500 miles on the odometer. A runner, it likely needed lots of TLC, clearly having just been pulled out of a long hibernation before being dusted off for sale. Tires were original and paint was, in a word, tired. Somebody saw promise, however, and bought it. This bike, the $2,500 Stornello, has issues of its own. Purchased by a Moto Guzzi enthusiast in non-running condition (“ran when parked,” said the previous owner), it was stuck in third gear. But it was pretty, with a non-professional paint job,…