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'" "o g WORLD RECORDS 10 Kilome~er Absolute Speed Record: 150.845 Miles Per Hour New Record Set By : Machine : .Yvon DuHamel O pen Class Kawasaki Z-I, Yoshim ura pipes and carbs. March 13 , 1973 Yoshimura Racing Date : Prepared by : 100 Kilometer Absolute Speed Record: New Record : Set By : Mach ine: ' 141.439 Miles Per Ho ur Yvon DuHam ~1 Open Class Kawasaki Z·l , Yo shimu ra pipes and carbs March 14 , 1973 Yoshimura Racin g Date: Prepared by : AMERICAN RECORDS AMA Certified Closed-Circut, One-lap Record: 160.288 Miles Per Hour New Record : Se t By : Machine : Dat e: Prepared by : : Yvon DuH am el '.' . .Open Class Kawasa ki Z·I , Yoshimura pip es and carbs March 13 , 1973 Yoshimura Racing AMA Certified Distance/Time Records: New Record: Set By: Date: Machine : March 16, 1973 Skip Newell & Bryon Farn swo rt h Kawasaki Motors Corporation 1062 McGaw Avenue Santa Ana , Calif. 92705 Dear Skip & Bryon, On behalf of Yoshimura Racin g, myself , and our staff , I wou ld like to ex ten d my pe rso nal thanks to all who mad e our record run s a t Dayt ona po ssible. I extend special gratitude to Kawasak i for pro vidin g a sto ck chassis tha t was capable of running tru e at th ese spee ds , fro m o ur ex perience this is at least 50% of the job. It sho uld also be po inted out th at this mach ine wa s a bso lutely stock 'in bor e and stroke with the mo difica tio ns available to th e general pub lic. It is also my int ent ion to th an k Good year fo r the tires that provided us with th e roadab ility to with stand th e speeds an d end urance necessary for th e task at hand. The co mbinat ion of Champ ion Sp ar k Plugs burn ing clean on Union 76 gaso line were also key factor s in the aforemen tio ned record ru ns th at helped us mai nta in the peak performanc e necessary . For th is test we used Castro l Oil to keep th e engine lub ricat ed and th ey are here by ex tended our gratificati on. In closing we at Yoshimura would like to salute the man wh o act ua lly d id th e record sett ing, Yvon DuHam el, wh o put forth th e ski ll necessar y for such successful a reco rd attempt . Cordially, cS~ To be announced by AMA Yvon DuHam el March 15 , 1973 Productio n Class Ki wasaki Z-l, wit ho ut fairings , and using stoc k exhau st and carburetio n. Prepared by Yosh imura Racin g, U TI LI Z ING A STO CK C HAS S IS A ND MODIFICATIO NS AVAILABLE T O THE GENERAL PUBLI C. (These records were for 3 mi les, 5 miles, 10 miles, 15 miles, 20 miles, 25 mile s, 50 mi les, and 100 mile s.) YOSHIMURA R.A.CING Dale O. Alexa nder President, Yoshimura Racing YO SH IMU RA RACING • 2190 SH AST A WAY • SI M I VAL LEY, CA LI F. 93065 • PHONE (805) 527·3589 e, M .... '" ri 1i « ~ w Z w -' U > U