The side valve Harley-Davidson Single for 1928 has 12 new features
The modernized motorcycle. That, in a short sentence, describes the 1928 line of Harley-Davidson motorcycles. Improvements-yes. But advancements would be the word more nearly describing the many new items which have been built into Harley-Davidsons.
Those riders who have longed for something to cope with the quick acting four wheel brakes of the automobile, will now have a fore-wheel brake all their own. This, to be sure, is a revolutionary feature in America, but the growing congestion of traffic in all cities and on the majority of highways has made the addition of more braking surface a practical necessity.
This particular feature, now introduced for the first time in America, has been in the making at the Harley-Davidson factory for a considerable period, but was not adopted as standard until it had been given exhaustive tests. These tests, made under every conceivable condition, have amply proven this member to be worthy of a place on the advanced Harley-Davidson line. The action of this auxiliary brake is positive, and the neat and graceful lever, which operates the brake from the left handlebar, has sufficient leverage to bring the machine to a smooth, velvet-like stop in a surprisingly short distance. Used in conjunction with the already tried and proven rear wheel brake, maximum frictional surface is provided and the rider has absolute control over his mount at all times.
The front wheel brake is of the internal expanding type and is placed in an easily accessible location so that it may be serviced with ease and adjusted quickly. The brake is nobby in appearance and one glance at it will carry the conviction of sturdiness. The Harley-Davidson fore-wheel brake is designed along original lines and is undoubtedly years in advance of anything of like nature now on the market.
Here’s some startling news for the hot throttlers who want top speed for long stretches; a brand spankin’ new throttle controlled oiler and it looks like goodbye hand pump except when you want to refill your crankcase after flushing. Proper motor lubrication at all speeds from the lowest to the highest has been the aim and ambition of the majority of motorcycle manufacturers for years-and now we have it! The throttle controlled oiler works as certain as the motor itself, for the same control that operates the gas is the control which regulates the flow of oil. Looks simple and as a matter of fact, is simple. The well known method of setting the capacity of the pump is retained, that is, by adding or removing washers according to the quantity desired to be pumped. After the oil is set as to the maximum capacity desired, the throttle takes care of the feed at varying speeds.
Probably if it were not for the multiplicity of altogether new features which are to be seen on the 1928 Harley-Davidson models, the air cleaner would be hailed as one of the greatest steps in modernizing the motorcycle. More miles from the motor is like finding money on the road, and the air cleaner which comes on the 1928 Harley-Davidson does that very thing by shutting out harmful grit, dirt, and gravel; thus assuring at all times a clean, dirt-free mixture entering the combustion chamber.
The air cleaner is a chamber attached to the carburetor which traps the foreign matter and expels it through an opening in the bottom of the cleaner. This feature is of utmost importance to those who ride volcanic, gravel, sand or dirt roads. This cleaner can be supplied on De Luxe model carburetors only, which is standard equipment for 1928. The model “H” carburetor can be supplied on all twin models, without air cleaner, when ordered.