BY <p moved="true">JOE PARKHURST</p> Three-time Grand National Champion, Joe Leonard, has informed CYCLE WORLD that he again expects to be Harley mounted for the forthcoming AMA Daytona. Though missing last year’s initial go over the new road race course, Leonard finished second in 1961 National point standings to Carroll Resweber, as he did the year before.
Could you help me to find plans on how to make a dynamometers? I have a Triumph dragster, and it would probably turn a much better time in the quarter if 1 had a “dyno” to tune it with. ROBERT ACQUISTAPACE Hollister, Calif. Yes, you are quite right, a dynometer would help you to get through the quartermile a little faster—or perhaps even a lot faster, depending on how good an “ear” you have for tuning.
SOME SCOFFERS may argue otherwise, but there is really very little doubt that “racing improves the breed.” Competition work, in any of its many forms, greatly accelerates the development of new ideas and is also a tre mendous force in refining existing features.
SOMETIMES, the performance capabilities of lightweight, small-displacement motorcycles are so good that we wonder why so many “big” bikes are on the road. Certainly, the performance potential does not go up in direct proportion to increases in engine displacement and there are limits to the amount of speed one may use in any case.
SURELY, there is nothing in this world so near the heart of the do-it-yourself speed-tuning artist as the subject of valves and porting - and the ways in which these can be altered to improve engine performance. This preoccupation with the engine's ventilation apparatus is understandable, however, as the ultimate power potential of any engine depends, in large measure, on how efficiently it draws air in, and pushes the exhaust products out.
HEADING north from Santa Barbara on U.S. 101 in California, I tightened down my steering damper a few notches as George Engle on his R/69 and I on my KS 601 set our thottles for about 65 mph. Both machines were laden with camping gear and wet weather equipment in anticipation of the climate ahead.
Recent months have seen a great number of words written about motorcycling as a sport, transportation, or just for fun; there has also been a considerable amount of wordage spread around regarding the existence of new magazines and how they are not needed in the “limited” field of motorcycling.
The Year: 1935 The Time: 8:00 P.M. The Place: A Typical Night Speedway Race Track THREE trumpeters in striking blue uniforms stand at the pit gate and blare forth a musical signal that the evening’s racing festivities are about to begin. An expectant murmur goes through the crowd of 20,000 as thirty-six riders, resplendent in gleaming silks, are introduced individually and make one slow tour around the track and back to the pits.
Is a synthetic rubber base sealant manufactured to aircraft specifications being used to repair fuel tanks of commercial and military aircraft, and it works even better on bike tanks. It also seals oil tanks and can be used for a gasket sealer for primary covers, tappet covers or wherever you wish to prevent annoying oil leaks.
White Motors, 1514 Newport Blvd., in Costa Mesa, California, has announced the complete Maico line for 1962. Two engine displacement sizes are featured, 175cc and 250cc, in a total of six models, four 250’s and two 175’s. Another machine not shown here is the New Maicoletta scooter, powered with the 250cc two-stroke engine.
THE Rocket Cycle, by the Bill Matthews Co., 846 E. Valley Blvd., in San Gabriel, Calif., is one of the later additions to the fast growing mini-bike world. The Rocket separates itself from quite a few of them, though, by the use of several well-thought-out innovations, the most important being the high handlebars and the wide, well sprung seat.
THE Velocette Viceroy might well be called the thinking man’s motor scooter, if one can overlook puns. What seems, on the outside anyway, to be a fairly ordinary looking vehicle, is in reality a scooter for any serious enthusiast to think twice about.
Dear CW : Enclosed is my subscription to CYCLE WORLD. Have been reading other so-called cycle magazines for ten years and find them getting progressively worse. After reading my first issue of CYCLE WORLD I find it to be far superior. It contained the type of technical and detailed coverage most of us devoted cycle riders like to read.
1961 proved to be a poor year for the British motor cycle industry, so much so that one member of Parliament raised a question in the House querying what the Government intended doing to assist the manufacturers. The answer was the equivalent of a cold shower as the industry was told, although not directly, that it must pull its socks up and clear up its own troubles.
The Chicago Heights Club's competition belies their name
THE day of the run saw terrible weather, the temperature was 32° with fog and freezing rain, visibility was down to a few hundred feet, but run they did. The starting point was Goodnow, Illinois, and the mass start, considering the icy conditions, drew much concern from the riders so the club drew numbers for starting positions one minute apart instead.
Every component part of the motorcycle is thoroughly discussed in a new book from England by famed engineer and designer P. E. Irving. Interestingly written, with a practical, common sense approach, “Motorcycle Engineering” holds a vast appeal for both the tinkerer and the seriously competitive cyclist.