Cycle News - Archive Issues - 1970's

Cycle News 1973 03 27

Cycle News is a weekly magazine that covers all aspects of motorcycling including Supercross, Motocross and MotoGP as well as new motorcycles

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.,... N U J oh n Weed ge ts away after a leisure ly pit stop. Daytona Ladies sing dis song Doo-dah , doo-dah Daytona racetrack two an' half mile long Oh dee-doo-dah day Gwine to run all night Gw ine to run a ll day You bet yOU ain't gwine m iss With 10 gra nd fr om b ig K. Kawasa,ki Nabs . S,ee~ Records ~ - Old m otorcycle record-setting .fang by A rt Friedman Ka wasa ki came to Daytona after the 20 0 m ile National with th ree bi kes, ten tho usand d o llar s (A m e ric an ), some very t ric k rid e rs, an d lots of support. Th ey we nt ho me wi th at least nine AMA and FI:\1 sp eed re cords ra ngin g from 16 0 :\I PH 10 109 MPH. Yvon DuHamel grabbed all th e K awa sa ki re cords except for the 24 h our sp ee d . He used a K awasa ki 90 3cc four-stroke' en gin e prepared b y Yoshi m ura Racing. It wasn't stock, but it had fewer m o d ific a tions than are allowed b y th e F I~ 1 o r :\~ I:\ rul e b o o ks. It h ad head w o r k. a cam, and other mi n or internal ch an ges. Fo r the F1:\1 record attempts the Yoshi mu ra engine was put in a bike wi th a fairing and a streamlined seat. With this set-up, DuH am e l obtained an average speed o f 160.2 14 :\IPII to take the FIM un limi ted closed course re cord. An interesting note on this bike 'is th at it h andled far better than th e o ther b ik es wi th ou t th e st reamlining , There was som e can tr oversy as to w hethe r this w as due to th e st reamlining or ch as sis that h ad so mehow b een p ut toge ther just righ t . With this bi ke D uH am el also p ut th e pressure on the 10 a n d 10 0 kilome ter reco rd s. The exac t figures h aven ' t b ee n released yet be cause the AMA hasn't ce rt ified th em. The o nly com ment fro m th e A},IA was tha t K awasak i ma y ha ve more records than th ey exp ec t. Yvo n a lso a ttacked th e reco rd s th a t he se t in 19 69 o n a BSA 750 t ripl e, b u t had so me proble m s. He u se d the sa me Yo shimura p repared engine but in a bike th a t was a DIS " STRON G" MOTORCYCLE PARTS AND ACCESSORY SALESMAN EAR N 200 E XTRA DOL LARS PER W EEK L ead i n g J ap an ese nut and b o lt man u f actu rer can n o w su p p ly a c om p lete com petit ive ly p ri c ed li n e o f h a rd w are an d p ay 2 0 % cornm tssto n . (213) 248 -2850 Attaches to f ront or Rear f rames 01 Any • CAR • TRUCK • T RA I LER Y o ur custo me rs will get sam e day sn i pme nt fr om our So u t h er n Calif o rnia close r to stock. It had low bars, K o ni shoc ks, racing ti res, a -sp ecial ch ain , an d n o tu rn signals. With th is bike he we nt after the AM A re cords ran gin g fro m five to 200 mil es and the o n e h o u r re c o rd . He got so me an d h e m issed so me . T hey a ll w ould have been easily obtaina b le except for a broken chain a nd a b lo wn gas ke t o n the left side of th e e ngi ne . T h e gasket w as th e o n ly p ro b le m that th e engi nes h ad in three d ay s of ru nning, an d it wa s repla ced in two minut es. . Yvo n w as in c redible o ut o n D ay ton a 's two an d a half mile oval wh ich w as u sed for the ru ns . T he 5 0 0 p ound m ach in e w as wobbling fier cel y toward t he en d (w hich ca me w he n th e chai n broke ) , b ut Yvon j us t held on an d m ai n tain ed th e 13 0 MPH average th at was asked of him. H e w ould rid e th e walls lower th an any o f the e igh t ride rs wh o h ad ridden in the 24 h our a tte m p t. Little things lik e speed w obbles didn ' t b other Yvo n, H e just kept th e p owe r on a ll the wa y a ro un d and fo un d some o the r BURAK TUNING SCHOOL Oilers a conllnuous series of two classes. One basic and one advanced. For literature, times and pr ices, call or write REED PORT ING 6 & 9 Port CZ Barreis Custom Engine Building Total Competition Headquarters The Best Dea l On CZ Or Hodaka THE BIKE SHOP to yo ur p r esen t acco unts and earn b Ig co m m issio ns wit ho ut ma k in g any extra st o p s. ~t~-, '" Th is photo is fo r Gary N i x o n w ho say s he' s never seen a pi ct ure tak en fr o m the t op o f the bankin g. Yv o n is go ing about 135 . d istribu t i on ce nter . O ffe r t his u nique seevtc c : I ' ~~~ ~~~~f~eB~~~~ : L~~e fno ~~le~ ~ntal~f~~~ :~ (714) 5 32-3634 9 0 036 . [ ·Z lo,HlingRamp Dealer Inq uiries In vitcd XL 250 HONDA FORGED RACING PISTONS Venolia motorcycle pistons feature exclusive design and all the basic performance characteristics we build into our a utomotive pistons, SIZES: Std ., .0 20 , .04 0, .0 60, :0 80 , 77mm. 78 m m & 79 m m . Co mp res sio n ra t io; 10 , 11 & 12 t o 1. Mos t s izes a vai la ble for im m ed ia te s hipm e nt . Other s izes upon req uest . S END $1.00 for CATALOG ON ALL FORGED PISTONS FOR BIKES. DEALERS S END FOR YOUR PR ICES & DELIVERY. 0 s d .& & s t e 1 1 • 1 n 2 160 Cherry Ind ust ria l Circ le Long Beach, Ca liforn ia 90805 2 13·636-9329 • 531-8463 FORGEO RAC ING PISTONS ·b g s Full Heat Treated Alum inum Sw ingarm Assem blies YAMAHA MAICO SUZUK I KAWASAK I CZ BULTACO 21"1 South Grand , San ta Ana, California 92705 (7 14) 557 -3914 , ,

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