Cycle News - Archive Issues - 1970's

Cycle News 1973 02 13

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/141044

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New Breed and the Veteran Campaigner --:..-.. ~ w Z w oJ U >- U This picture tells the story . Honda was good for a bike length over the CZ in a start area drag race, regardless of rider. CZ would pu ll lon ger in each gear. Honda had to be smartly up-shift ed to retai n the advan tage . 3te_ E t - 8 '2 -\ .~ ["1 ( j i M ke of Moto rcycle a Exhaust Temperature, Engine Temperature 0 Engine: M~fied , G2j 'Stock C _ z: Test Purpose I Cj l COM P'3 j'I)(I!d l c _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _Spark Plug __________________________________________________Gear 'J..:, !. BCt Cv -/,- ' .... :~ I _ ....... , " f I~GK ( . , .. ~ ,-,.1 - -, TLI C '-f 'co >< I P All dyno readings made in back-fa -back runs on Patraea digital dyn amom eter. RWHP " TOR QUE ! r 25 24 S4 23 58 22 it 4> j 21 20 w ::> 0 cr 0 f- 19 18 a 17 Ul Head fin ning extends to the bottom . Co mb ustion chamber has two shoulders bui lt in . 16 u.. 15 fa a 14 "- 13 a: 12 w :3 a 0- ;1 W Ul a: 10 a :I: ~I ~I 9 8 7 6 5 to=- ._ . 4 3 f-- - - I I ~ 2 1 1--1----1--_ . .... -. - _ _ =-.-.-1 -----"1'- _~ 0 .g a 0 Note rearward extension of tops of exhau st ports and large transfer and purge ports. --II--t---t-.--_-+- ~. ~ .. ._ . Lll . . ,'" 0 '" a a 0 q . a 0 q a a a . . . Lll 0 0 0 a 0 a a a 0 a Lll a Lll 0 Lll a a a e- co co '" '" -~ . aa. a. 0 Lll a Ul Lll Lll \0 \0 e- ENGINE SPEED (RP M) 0 0 a . a. a. 0 I

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