Section II

DESCRIPTION AND TABULATED DATA

Paragraph

Description 3

Data 4

3. DESCRIPTION (figs. 1, 2, and 3).

=a.= This 2‐cylinder solo motorcycle is powered by a V‐type, air‐cooled

gasoline engine, operating on conventional 4‐stroke, 4‐cycle

principles. Air‐cooled engines rely upon movement of air over cylinder

and head radiating fins, and upon circulation of oil for dissipation

of excessive heat. Motorcycle engines, therefore, under no conditions

should be operated for more than 1 minute when motorcycle is not in

motion.

4. DATA.

=a. Vehicle Specifications.=

Type of engine 2‐cylinder, V‐type L‐head, air‐cooled

Cylinder bore 2-3/4 in.

Stroke 3-13/16 in.

Engine number (serial) left side engine base,

below front cylinder.

Wheelbase 4 ft 11-1/2 in.

Length over‐all 7 ft 4 in.

Width over‐all (handle bars) 3 ft 5 in.

Wheel size 18 in.

Tire size 4.00 × 18 in.

Tire type Drop center

Weight of vehicle (without rider or armament) 540 lb.

Ground clearance (skid plate) 4 in.

Kind and grade of fuel Gasoline: 72 octane or higher

High gear ratio 4.59:1

Engine sprocket 31‐tooth

Countershaft sprocket 17‐tooth

Rear wheel sprocket 41‐tooth

=b. Performance.=

Maximum allowable speed 65 mph

Miles per gallon (hard surface) 35

Cruising range (without refill) 100 miles

Fording depth (carburetor) 18 in.

=c. Capacities.=

Fuel capacity (left tank) 3-3/8 U.S. gal

Oil tank capacity (right tank) 1-1/8 U.S. gal

Transmission capacity 3/4 pt

Motorcycle, Solo (Harley-Davidson Model WLA) · 第 2 / 25 章