Cycle News is a weekly magazine that covers all aspects of motorcycling including Supercross, Motocross and MotoGP as well as new motorcycles
Issue link: https://magazine.cyclenews.com/i/125804
g 7Js Sur/flee " If .. l1. N (l) ri o ~ w Z W ..J o > o After some confusion due to rough seas, Yamaha managed to get their new models and the press to Catalina for a preview. Top of the line to be found on the Catalina pier was the all new TX 750 street bike. This is an OHC four-stroke twin, featuring electric starter, disc brake, and Yamaha's new technological feature called "Omni-phase Balancing". Tills is a device, weighing about seven pounds, that is located above and behind the crankshaft and driven by the same. It is supposed to virtually eliminate vibration throughout the RPM range. Other models new to the line include a dual-overhead cam 500cc four-stroke twin, with a disc brake, Keihin «liaphram) carburetors, and some neat Nortonesque megaphone-style mufflers. The other new street bike is a 60cc, European-style, small disp.lacement, GP type bike which completely occupies the under 250cc street market. The 250 twin gets reed valves ("Torque Induction") and a six speed box, and the 350 gets reed valves and a disc brake. The enduro line has a new 73cc 'mini-enduro, lots of cosmetic changes and 21 inch front wheels on the 250 and 360. The motocross line, like each of the three lines, con tains six models, ranging from 80 to the new 500. That 500 will be a fairly limited production item (3000 for 1973) and isn't even available for showing yet. The 250 and 360 models got altered frames (lower engine placement) and retarded exhaust port timing for better power characteristics. A new water-cooled 350 will head the line of production road racers, and will be available soon, for a little more than $2,000. The 250 racer will remain basically unchanged for 73. Neither of -these two will come with disc brakes, but maybe next year. Also new will be a production 125cc racer. I t will not be available until after Daytona, however. We can wait with baited breath for some kind of monster water-cooled bike for European racing, because of the new 400cc F1M minimum. T:x 500 Street 500cc GT1 Enduro BOcc Factory 'Spec' Pipes D = Custom built for your personal bike - Pipes for Penton, Monark, Rickman, Carabela, DKW. Wombat and others. 80DYFUELBYENDUR~ Tested and used by lhe lol1owil\9 Dist. 37 riders: ERIC JENSEN • BOB McLAUGHLIN • LARRY BERGQUIST' LARRY PFUTZENRUETER • EO SCHEIDLER' WALT AXTHELM' LARRY HEARN • GEORGE MAGALLON, M.D. $8.50 ror 3 monlhs supply (Ca~bc/f~~d.e~}~~~I~%E~kTURAL $7.50 for 3 monlhs supply (Col"'. resIdents ,1dd 5% tilX). Send check 01' money order to: Endura Vitamin, Dept. A. 638 S. Glendora Ave., Glendora, Ca. 91740. I 11900W.PicoBlvd. W. Los Angeles, Cal. 90064 (213) 477-0997 & 473-7996 ~ III I: ~ W~ 1031"1·Hawlhorne Blvd. Inglewood, Cal. 90304 (213) 672-2242 & 672-4414 .. !J ..---.. FREE MOUNTING WITH TIRE PURCHASE Motorcycle Accessories Unlimited 4136 Woodruff, Lakewood, Ca. (213) 429-5961 SPECIAL 1 WEEK ONLY OCT. 11 thru OCT. 18 New 1972 Rickman 125 $689.00 + Tax & Registration Watch for other weekly specials KOLBECYCLESALES, INC. 22123 Ventura Blvd. Woodland Hills (213) 348-7891 SC 500 Motocross SOUcc