Source: Graces Guide
HARLEY-DAVIDSON. (Stand 29.)
7-9 h.p.; 84.1x88.9 mm. (998 c.c); V twin-cylinder four-stroke, over-head inlet valves; mechanical lubrication; Schebler carburetter; Remy chain-driven ignition and lighting generator; three-speed countershaft gear; chain drive; Goodyear or Firestone 28x3in. tyres. Price £196 magneto model.
The Harley-Davidson Motor Co., Harleyson House, Newman Street, W.l.
To the mechanically minded one of the most attractive features on this stand is the part section of the 7-9 h.p. Harley-Davidson electrically equipped power unit, which reveals the evenness of metal in the cylinders, the regularity of the radiating fins, the ingenious mechanical oil pump, and the timing gear of this engine. The Harley-Davidson was one of the first examples of enclosed exhaust valve springs and tappets, this protecting these important parts from dust and prolonging their life. So far as the complete machine is concerned, there have been few alterations for 1921. The chief of these lies in the design of the front mudguard, which now affords far better protection for the rider. The principal features of last year's model are retained, such as the excellently made countershaft gear box, providing three speeds, kick-starter and clutch, the all-chain drive, and a comfortably sprung-saddle. Prices of these machines include all accessories, such as electric lamps for the electric model, and acetylene lamps for the magneto model. One of the most interesting of the exhibits is the racing machine, from which great things are expected at Brooklands during the coming year. This has to all intents and purposes a standard engine to which a Schebler carburetter with a large protector over the air intake is fitted. It is single-geared, but is provided with a hand-controlled clutch. Four sidecar models are shown, including two touring models,, one sporting model, and a box carrier, while the Harley-Davidson taxi sidecar is to be seen outside the Show.
4 h.p.; 70x76 mm. (584 c.c.); twin-cylinder four-stroke; side-by-side staggered valves; mechanical lubrication; Schebler carburetter; Remy combined generator; three-speed in engine unit gear; chain drive; Goodyear 25 x 3 in. tyres. Price £154 10s.
Like the other solo model the 4 h.p. flat twin is shown on a stand provided with a looking-glass so that the underside of the machine may be seen. The engine bristles with ingenious points, such as the heating of the induction pipe from the exhaust manifold, the mechanical lubricator, and the staggered valves. For the first time it is shown fitted with the Remy electrical system, which serves both for the ignition and lighting. This machine has been exceedingly popular during the past year on account of its smooth running and the comfort it affords. It is not yet available for delivery, and it should be noted that the prices mentioned are those of existing stock.
Olympia Show. The Motor Cycle, December 2nd, 1920. Page 702
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