2013年4月13日星期六

HowStuffWorks 1938 Harley-Davidson UL -spun4

The 1938 Harley-Davidson UL motorcycle was among the list of impressive models Harley supplied since the firm manufactured its huge comeback through the doldrums with the Fantastic Depression.

After recovering from a complicated time period from the early 1930s, Harley-Davidson was poised to forge ahead using a total lineup that incorporated 11 different versions. It was created around "Large Twin" engines of 61, 74, or 80 cubic inches, all of which shared several components.

However, the 61-cubic-inch V-twin was the famous "Knucklehead" with overhead valves, while the 74- and 80-cubic-inch V-twins had side valves.

The 1938 Harley-Davidson UL motorbike was a Sport Solo model by using a 74-cubic-inch flathead powerplant.

Flatheads had been modernized in 1937 with the adoption from the recirculating oiling system introduced on the Knucklehead the year before, and in 1938 gained more subtle changes: Higher handlebars resulted in a more comfortable riding position, the instrument panel was simplified by replacing the ammeter using a red warning lamp and the oil-pressure gauge having a green lamp, and new colors and striping were created available.

Surprisingly, Major Twin flatheads remained during the Harley line for a dozen years soon after the debut on the famed Knucklehead overhead-valve versions.

And the smaller 45-cubic-inch flathead V-twin continued to power three-wheeled Servi-Cars into the 1970s -- both indications that many riders continued to admire the inherent simplicity in the flathead design.

Continue to the next page for more pictures of your 1938 Harley-Davidson UL motorbike.

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