Cycle News - Archive Issues - 2000's

• ° dl§(CJ PH OT O S BY BLAKE CONN ER rb are ly do we t urn d o wn t he to ride a trick mot ocr oss bike , so when Mike Tolle of MT Racing offer ed us a c ha nce to spin a few laps o n o ne of his highly m od ified 20 0 0 Yam aha YZ125s at Glen Hele n Rac eway, naturally, we took him up on his offer. But th is bik e wasn 't yo ur a ve rage, everyday , hopped -up MX bike. As with most m od ified m a chines , Tolle ' s YZ featured a ll of th e usua l porting , mi lling , blue-printin g , rev a lving a nd twe ak ing th a t a re s up posed to m ake yo ur stoc ke r fa ster and bet- ter, but th is bike featu red som ething that really t ickl ed o ur curiosity - its ign ition . T he bike we ro de fe atur e d e ight a djusta b le mapping c urve s , all at the tw ist of a knob loca ted within easy rea ch of the hand lebar. Unfo rtu natel y , yo u can' t h av e th is s ys tem , but you c a n borrow one for a while . We'll exp la in . Not o nly do es To lle ho p -u p m od ern MX bikes a nd restor e o ld vintage bikes , Tolle is the im po rte r of th e Vortex Dua l Curve Sapphire ign itio n - thi s o ne yo u can h a ve ( b ut no t be fore fo rking ou t a ro un d $345 ). There a re othe r du al-curve ignitio n sys tems out there , but what makes th e Vortex ign ition unique is th at yo u ca n c us to m ize the two curves (whic h yo u c an adjust while yo u ride ) that yo u want for yo ur specific motorc ycle a nd ne eds. Tolle s a ys tha t b y adjusting the mapping c urve of yo ur bike' s ignit ion, 1:\..cha nc e MT Racing/Vortex Yamaha YZ125 yo u ca n get the mos t o ut of yo ur m od ified - o r stoc k - engine. "You can create cu rve s a ro und the type of racing the bike is be ing us ed for ," Tolle sa ys . "If you m odify yo ur b ike, it e n ha nces e veryt h ing yo u' ve don e to the m ot o r; to get a bro a de r powerband over wha t th e stock igni tion will produ ce. A stock ignit ion will o n ly d o s o mu ch . With t he Vo rt e x igniti on , you c a n get exac t ly wh at yo u ne ed fo r any a pp lication by cus to m izing your own c urve s." In a nutshell , here 's ho w the who le th ing wo rks. Fo r a $ 2 00 de posi t, To lle will se nd yo u the eight-switc h box t o test o n your ow n b ike . O nce yo u de c ide whi ch two setti ngs wo rk bes t for yo u , you s hip t he e ig h tsw itc h bo x ba c k t o Tolle and th e n he 'll program th ose setti ngs yo u like b e st in to th e d ua l-c u rve S apphir e ign itio n . A few days later, yo ur new ig n iti o n , a long w ith your $200 dep o s it, wi ll sh o w up at yo u r doorstep , read y to be insta lle d. Tolle says th at m o s t o f his bu si n e s s ha s been with th e ka rt ra c ers , so fa r. The YZ125 we rode had the eigh t s w itch ki t inst a lled , so we g ot th e chance to exp erience the e ight availab le curves. Our Pro test rider sai d he co uld feel the differen ce with each setting. "S om e s e tt ings wou ld re v o ut qui ck er than ot he rs , wh ile o t he rs wo uld rev out to th e m oon ," he said. "And th e re were others tha t were in between. You cou ld really feel th e diffe re nce." Mike Tolle of M T Racing knows how to ma ke a m ot ocro ss bike rip. One of his late st examples is this 2000 Yamaha VZ125, which features t he Vortex Dual Curve Sapphire igniti on. The ignit ion is unique in that its mapping curve can be customized to fit your ri ding ne eds. O v erall , o u r Pr o tes te r lo v e d To lle's mod ified Yamaha . "T h e t h ing is a ro c k etship ," he sa id. "It' s th e be st 125 I've ev e r rid den ; th e motor is so strong a nd is still v er y u s eab le . I lov ed the w a y it exploded o ut of th e corne rs ." He a lso felt th at th e bi ke worked extre mely well no matter wh ich curve s ett ing he had it on , but liked the fact you c ould fine -tu ne th e motor to work on a pa rticu la r t rac k. For Glen He le n, he qui c kl y fo un d a sett in g he lik ed that e nha nc e d bottom end bu t stil l re v v ed o u t we ll fo r th e lo n g e r str a ig h t s . Fo r a tight t ra ck, h e would 'v e adju st ed t he c u rv e fo r qui cker rev s . F or m ore detailed in fo rm a tio n about the Vortex igniti on , give Tolle a c all , a nd he c a n fill yo u in o n all of t h e some ti mes m in d-b o g gl ing a nd confusi ng deta ils a bo ut ign itions . And he ' ll e ven be glad to ta lk to you about porting , mi lling , va lving. .. eN [MJ'U' Labor PORTING . __ .•. . . . .$225.00 MILLED HEAD . _. •. . . . . . . . .$55.00 SPUT CASES $175.00 MATCH PORT CASES $150 .00 BLUE PRINT TRANSMISSION .$80 .00 BORE CARBURETOR $55 .00 REVALV E FORKS .. • . . • .. .$ 125.00 REVALVE SHOCK $125.00 s Parts VORTEX DUAL CURVE IGNITION DeP EXHAUST PIPE DeP SILENCER WISECO PISTON V-FORCE DELTA" REED VALVE AZONIC DOUBLE CROSS HAN DL EBAR CARBON FACTORY FRAME GUARDS CARBON FACTORY CHAIN GUIDE CARBON FACTORY IGNITION COVER CARBON FACTORY CDI T RAY CA RBON FACTORY GU DE PLATE CARBON FACTORY LOWE R FORK PROTECTOR CARBON FACTORY PIPE HANGER . . • . . • . . . .. TEC HNOSEL SEAT COVER TECHNOSEL GRAPHICS rulDCSalJi)~ 7505 Jurupa Ave., Ste. C Rivers ide, CA "504 909/353-1253, (fax) 909/353-1259. eye I e n e "" S • $345.00 $18 9.00 $79 .00 $86 .92 $148.00 $11 9.95 $89. 95 $69.95 $199 .95 $29.95 $79.95 $89.95 ..$24 .95 $69.95 $59.95 NOVEMBER 29 , 2000 25

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