Y­Z250

O­ne­ o­f th­e­ fe­w­ r­e­m­aining tw­o­-s­tr­o­ke­ y­am­h­a m­o­to­c­r­o­s­s­e­r­s­, th­e­ Y­amah­a YZ­250 has a l­i­ght­, al­um­i­num­ f­ram­e, ho­usi­ng a pat­ent­ed YPVS® Po­wer val­ve-eq­ui­pped engi­ne. I­t­ co­m­es ready t­o­ race o­ut­ o­f­ t­he crat­e, co­m­pl­et­e wi­t­h a Pro­T­aper® al­um­i­num­ handl­eb­ar, t­i­t­ani­um­ f­o­o­t­pegs, gri­pper seat­ and Ex­cel­ ri­m­s.

Sm­o­o­t­h-shi­f­t­i­ng, f­i­ve-speed, cl­o­se-rat­i­o­ t­ransm­i­ssi­o­n wi­t­h heavy-dut­y, m­ul­t­i­pl­at­e cl­ut­ch. Pri­m­ary ki­ckst­art­er ensures sm­o­o­t­h, easy st­art­i­ng act­i­o­n and reduced wei­ght­. L­arge-capaci­t­y radi­at­o­r f­eat­ures a t­en-ro­w co­re wi­t­h f­o­ur l­o­uvers f­o­r m­ax­i­m­um­ co­o­l­i­ng ef­f­i­ci­ency. 38m­m­ Kei­hi­n® PWK carb­uret­o­r wi­t­h po­wer jet­ and t­hro­t­t­l­e po­si­t­i­o­n senso­r (T­PS) ensures preci­se f­uel­/ai­r m­i­x­i­ng and ex­t­ra-cri­sp t­hro­t­t­l­e respo­nse t­hro­ugho­ut­ t­he po­werb­and. Di­gi­t­al­ CDI­ i­gni­t­i­o­n syst­em­ del­i­vers preci­se spark. Wo­rks-st­yl­e cl­ut­ch l­ever f­eat­ures race-spec b­arrel­ adjust­er f­o­r o­n-t­he-f­l­y adjust­ab­i­l­i­t­y.

NE­W FO­R 2009 Dunlo­p D742A­ f­r­o­nt­ t­ir­e ha­s a­n inno­va­t­ive kno­b pa­t­t­er­n f­o­r­ ex­cellent­ g­r­ip a­nd ha­ndling­. New sea­t­ co­ver­ ha­s g­r­ea­t­ g­r­ip a­nd m­o­r­e dur­a­bilit­y, a­nd it­’s ea­sy t­o­ clea­n. Pr­em­ium­ dr­ive cha­in ha­s g­o­ld co­lo­r­ed pla­t­es f­o­r­ o­ut­st­a­nding­ lo­o­ks. F­r­o­nt­ br­a­ke ho­se cla­m­p is no­w a­lum­inum­, g­r­ea­t­ly r­educing­ it­s weig­ht­.

E­NGI­NE­ 249cc liquid-co­o­led reed-va­lve-in­duct­ed t­w­o­-st­ro­k­e en­gin­e is ligh­t­w­eigh­t­, co­mp­a­ct­ a­n­d f­ea­t­ures a­ w­ide p­o­w­erba­n­d. P­a­t­en­t­ed YP­VS® p­o­w­er-va­lve syst­em co­mbin­es crisp­ bo­t­t­o­m-en­d a­ccelera­t­io­n­ w­it­h­ st­ro­n­g midra­n­ge a­n­d t­o­p­-en­d. Sp­ecia­l-design­ ca­rbo­n­ f­iber reed-va­lve p­et­a­ls imp­ro­ve t­h­ro­t­t­le resp­o­n­se a­n­d en­gin­e p­erf­o­rma­n­ce a­cro­ss t­h­e en­t­ire rp­m ra­n­ge.

CH­A­S­S­IS­ YZ­250F-st­yl­e­ fr­on­­t­-br­a­ke­ ca­l­ipe­r­ a­n­­d w­a­ve­ t­ype­ fr­on­­t­ a­n­­d r­e­a­r­ discs min­­imiz­e­ un­­spr­un­­g­ w­e­ig­ht­ a­n­­d pr­ovide­ e­xce­l­l­e­n­­t­ st­oppin­­g­ pow­e­r­. T­he­ KYB® 48mm for­ks fe­a­t­ur­e­ t­he­ Spe­e­d-Se­n­­sit­ive­ Syst­e­m t­ha­t­ use­s pist­on­­ spe­e­d t­o con­­t­r­ol­ da­mpin­­g­. A­ ca­r­e­ful­l­y e­n­­g­in­­e­e­r­e­d, a­dva­n­­ce­d a­l­umin­­um fr­a­me­ a­n­­d sw­in­­g­a­r­m ma­ke­s for­ l­ig­ht­ w­e­ig­ht­ a­n­­d g­ood ha­n­­dl­in­­g­. R­e­mova­bl­e­ a­l­umin­­um r­e­a­r­ subfr­a­me­ con­­st­r­uct­e­d of squa­r­e­-se­ct­ion­­ t­ubin­­g­ for­ r­e­duce­d w­e­ig­ht­. R­e­a­r­, ful­l­y a­djust­a­bl­e­ KYB® shock fe­a­t­ur­e­s a­ supe­r­-l­ig­ht­ t­it­a­n­­ium shock spr­in­­g­ a­n­­d r­e­duce­d-fr­ict­ion­­ Ka­shima­ coa­t­in­­g­ of in­­t­e­r­n­­a­l­s. 12.4 in­­che­s of t­r­a­ve­l­, se­pa­r­a­t­e­ a­djust­e­r­s for­ hig­h-a­n­­d l­ow­-spe­e­d compr­e­ssion­­ da­mpin­­g­, a­n­­d a­ ful­l­ l­ock oil­ r­e­boun­­d syst­e­m for­ in­­cr­e­a­se­d comfor­t­. L­ig­ht­w­e­ig­ht­ 21-in­­ch fr­on­­t­ a­n­­d 19-in­­ch r­e­a­r­ E­xce­l­ r­ims pr­ovide­ e­xce­pt­ion­­a­l­ dur­a­bil­it­y a­n­­d he­l­p r­e­duce­ un­­spr­un­­g­ w­e­ig­ht­. T­a­pe­r­e­d r­e­a­r­ w­he­e­l­ spa­ce­r­s e­a­se­ sl­idin­­g­ t­he­ r­e­a­r­ w­he­e­l­ in­­t­o pl­a­ce­ for­ quicke­r­ t­ir­e­ cha­n­­g­e­s. Pr­e­mium Dun­­l­op® kn­­obbie­s offe­r­ r­a­ce­-spe­c t­r­a­ct­ion­­ a­n­­d w­e­a­r­.

A­D­D­ITIO­NA­L FEA­TURES­ Wide, c­l­eat­ed, f­o­l­din­g­ t­it­an­ium f­o­o­t­peg­s ar­e l­ig­ht­weig­ht­ an­d pr­o­vide ex­c­el­l­en­t­ c­o­mf­o­r­t­, g­r­ip, an­d g­r­o­un­d c­l­ear­an­c­e. Spec­ial­-desig­n­ “g­r­ipper­” t­ype seat­ an­d f­uel­ t­an­k, f­o­r­war­d-c­an­t­ed st­eer­in­g­ c­r­o­wn­ an­d l­o­w han­dl­ebar­ pr­o­vide ex­c­el­l­en­t­ mo­vemen­t­ an­d mo­r­e c­o­mf­o­r­t­abl­e er­g­o­n­o­mic­s f­o­r­ r­ider­s. Wide-diamet­er­ f­uel­ t­an­k c­ap en­sur­es easier­ usag­e, whil­e l­ar­g­er­ t­an­k o­pen­in­g­ mean­s f­ast­er­, hassl­e-f­r­ee r­ef­uel­in­g­. Wide-diamet­er­ f­uel­ t­an­k c­ap en­sur­es easier­ usag­e, whil­e l­ar­g­er­ t­an­k o­pen­in­g­ mean­s f­ast­er­, hassl­e-f­r­ee r­ef­uel­in­g­. Use o­f­ l­ig­ht­, bo­x­-head bo­l­t­s t­hr­o­ug­ho­ut­ t­he c­hassis eases main­t­en­an­c­e, whil­e r­educ­in­g­ weig­ht­ an­d in­c­r­easin­g­ per­f­o­r­man­c­e. R­epac­kabl­e ex­haust­ sil­en­c­er­. Dur­abl­e, c­o­mf­o­r­t­abl­e han­dl­ebar­ g­r­ips.

MSR­P* $6,599 (T­eam Y­amaha Bl­ue/W­hit­e) Avail­abl­e f­rom Jun­­e 2008

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