Cycle News - Archive Issues - 1970's

Monoshock Unit Service vz Monoshock absorber service . We'll set up your monoshock un It to you r weight and damping requ trements, Monoshock unit rebu ilding, 011 change and n itrogen service. Parcel post. UPS, bus or ai r freight . One day service. The CZ for k k its are available by mall orde r. Kasson K it No. 1 - new dampers and springs $29.95. Kasson Ki t No.2 new dampers. springs. wipers and seals - $43.50. B ill Ka sson Yamaha , 1607 S. Lamar , Austin. TX 7B704.512-444.74B2. E.C. Porting and Pipe-Blueprints When It comes to bu ilding a racing two-stroke f rom a M RSO to a 501 Ma lco f o r M X. Deser t. Endu ro, ST,TT. or Road Racing I t ake a back seat to no one. Many of you have e xpressed the des ire to do your own porting and pipe building . If you w ant t o become a tun er or move your shop to b e in g the local hot-tip racing Shop you will find my ex p erien ce will b e cheaper t h an your mistakes. For more information and co m p le t e p o rt ing tool catalog. send $2.00 to E .C . B lrt , 2204 N .W. 151h Way, For a listing here, write Cycle News, P.O. Box 498, Long Beach, CA 9q80 1 or call (213) 427-7433 (ad dept.}, Each individuallisting $100.00 per year (50 issues). P o r tm q , bo r ing, wh eet laCing and tr u in g Par t s & Se rv i ce . BSA Y amaha BMW . MI lne Br o t ne rs , I n c . . 19 35 E . coro -aco B l vd .• Pa s i l d e n a . C A , 2 1 3 · 793 ·5 153 . SERVICES Akront Rims Th e c ho i ce La tc o Cy c le wo - ks , 2831 Juru c e r o. 5 l gn ,)1 H ilI . CA . 2 13 ·426 · 1 8 17 . Pre . mach . f or oer tc rrn ance e ng. We s oecrauze In n or mq & M ICr o f inish I!) , hon ing "8 . cor tm q & high com o . he ad s. cran kshaf t c ra nk stuff ing. re b uil d.. , w heel racm q, t r utn q & n at. , fo r k t ubes turned , fra me m od. , fd . mounte d sh o c ks, s wr n garm s l e ng t h n e d , fr ame s l o w er ed, e tc. . all e n h ead case bo l t s & studs . ti ta n ium bo lt s & se ll l ock . nuts. cer t , n eh a r c wetct ., also com p let e rac in g e ng . o f c n am m o ns world Wide . W e at A kro n! now qrve yo u m or e s e l ec t io ns . T h e larges t sto c« 0 1 ri m s me an s w hateve r y ou' re m to wE 'VE GO T IT . W hether it 's 1 4 " r i m s t o r Jeff Ward or 23" rims fo r Iv an M auge rs . Motoc r o ss or dese r t , flat- track or TT , Cafe ·r.l ce r c ho p pe r , Of speedway and al l stz e s l o r t he min t bikes. When o r c erm q yea r . p lea se m ak e, W r ite : & . A kr on ! A me ri ca n , PO Ana hei m, C A p hone : In clud e m o d e l. N orth H ill c res t Eng inee rin~ , 1437 N . Man zanita, ' Unit M, Orange, Cal ifornia B o x 2 3 0 7, 92 8 0 4 o r 7 14· 9 56 · 2 550. Dea le r .n Qulne':. Invi t ed . 92667. Broken Studs T ap · E )( 18 2 5 c o m ca n v W. 14 4 th (714) 997-7B65. XL 250/350, Rotary valve , and piston por t engine mod I f Ica t ion s . We spec ialize in port ing, po lishing, p ipe bUild ln~, and carbureto r/reed valve conversions. 6·9 e.m. Tues.-Fr i. s r.. Ga r dena , CA 902 49 (213 ) 32 3 · 3 8 34 . Br o ken s tu ds , e-r o o t s, drt us , ta p s , sc re ws , pins, r eamerv, In ser ts, e t c ., r em ove d Wit h o ut da m .:lge t o Exhaust Products h ole o r th rea ds b y el ec tro nic dr sm t e qra n o n . Build ing a 2 or 4 stroke exhaust system ? We fabricate cones to your specs. butt -joined, up to 21'" long. from 18 to 20 ga. steel. spot·tacked or co mpletely welded . We also carry a complete line of MC exhaust hardware , In cl . bent and straight tubing, br ackets , and silencers. Whether you're build ing 1 p ipe or a thousand , we can help you . 3 ee, sets $12 , 4 ce. sets Crankshaft Rebuilding Fact o ry Auth . Cran k · sha ft Rebuilding Cen ter All Ya m ah a cranks rebu ilt, spec. i n tw i ns & r oad ra c i n g c ran ks. Ori gin ato rs of " P/ R ' s p ec . " 2 5 0 & 3 5 0 street crank , imp r oves ac · c e t e r a ti o n & r elia bilit y. Used o n o u r c lass winners at Laguna Se ca Nat'l. & AFM pro 6 h r . r oad races t w o y ea rs runn i ng . Ro ad· racing part s i n stock. F a irw ay Perfo rmance Packaqes avail . for all Ya m a na sj monoshock serv : compl et e Yamaha ser v i ce f aci li ti es. F ast UPS return on all ser v i ces. D ea lers wri te on le t t er h ead . FAIRWA Y R AC- S14, 5 ee. sets S16 (tacked). Quantity discounts avail ., exhaus t hardware pric ing on request. Call o r write to : J & R Expansion Chambers, 1967 Glassell St., Orange . CA 92667. 714-99B-6410. IN G PRODU CTS 1350 E . Y or b a Linda BI •• Pl acen t i a, Expansion Chambers Get ting b e a t? Start sm oking with t he Bone ' s Smoke r Ex pa nsion Chambe r . Mad e to o r d er . Complete go fast servic e f or m o t o c ross r i ders, racers . and d irt bikes. Por ting. fra m e n) oOI Tlcatl on s, a yn o tuni ng • .:Ind frame l Owertng k i t s. Mall o r d e r. B o n e' s C y C le S e r v i c e . 2 3 1 0 Me.:ld ow la rk St., San Pab lo. ' CA 9 4806 . 4 15· 75 8 ·2 84 3 . . Cylinder Porting Je rry Major Ra c ing Co . Route 2, Bo)( 765 B, Hwy. 23 No., Eureka Springs. Ar k . 72632. 501-253-B340. Your cylinder ported for any racing app lication . Engine Building T .C . R aCin g E n terprt ses. 10704 Mot her al . A u stin . TX ( 51 2 ) 83 7 · 3111 o r 3 87 ·7523 . Spe cializing In cr ank b a la nc lng., ~ cylinder an d Head p or tin g . Sho t peening . m agn eflu x i n g. blo c k su rf ac i n g and valve se a t . rep la cemen t. Sp eCi ali Zi n g I n X Rs. als o a ll o t he r m ak eS and mod e ls. Pr o mpt m ai l o rder se r vIc e. B SA & M o n o s ll o c k Y ama ll ,l S e r v tc e. CM S P r oduct s mc.. 2 13 4 O ld M Idd lefield WilY, Mo unta i n View , CA 94043 . 415-9 6 1 -244 6 . R ac i n g f r a m es for fla t t r ac k and m o t o cr oss. Forks .... for k tng Oy F r an k - 9 4 5 Pi t ne r A ve. • E vanst o n . I II. 6 02 02 .' 31 2 ·4 7 5 - 100 3 . Fo r I,(; tube s and I r o n t sus p e n SIo n co m po ne n ts fo r an y c yc le tn any len gt h . S p r Ing s, co ll ars , crOw n s. trees, bra ces, kic k st and s. s pr i n g COn Ve fS lOn kI t !.. H onda ext ended cab les, et c . We make

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