Vintage Harley Davidson Model DL 1931 750cc Start Up
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Harley introduced the side valve concept for the V-twins for the 1929 model year when the 45 ci model D was introduced.A year later the F head big twin was replaced by the side valve 74 ci model V.The model D was sometimes referred to as the “three cylinder Harley”, because of the remarkable vertical position of the dynamo. source/image(PrtSc): classic-motorcycle.com The Model D was...
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