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Issue link: https://magazine.cyclenews.com/i/125871
Do-it-yourself Husqvama speedometer conversion By Dave Baum Just b ecause yo u ride a Husk y ::: doesn't mean you can't have a -eo ::: speedo/odorneter without convert- -e in g yo ur fr ont hub to the t un e of t il $80 or more installed . Here's one for $9.50 (plus tax) and a few do -it-yourself modifications. With the following steps you can begin There's an art to drinking a Pepsi. This Powder Puff had it mastered'. French insisted he started four-stroking. to zero enduros or just see how far and fast you went. These modifications we re d one successfully on a 1972 450 Husqvarna. 'This speed o sh o uld be relatively acc u rate since it is de signed for a 27 -28 " diameter wheel. The average 21" front wheel with a knob b y tire st an ds 27 ~" in heigh t. There is a go od chan ce th at th is conversion will fit a number of o ther bikes , too. The only disadvantage is that the odometer is not resettable without running the cable ba ckwards . and n o longer has the flange. So me may think this will allow the fo rks to be pu lled closer together b ut it wo n't. All tha t will happen is th at t he hex h ead sleeves will slide farther into the forks to wards each other. It won't hurt anything. Step one Fir st it is necessary t o remove a nd me asure th e hex-headed slee ve , whi ch passes through the fork on the left h and sid e (si tt ing o n bike ). If it m easures less th an 2 J .Omm then yo u are on 'y o ur way. Step two Wow, this is fun ! Even if I can't be scored since my number plate fell off. "l think it 's something in the engine,or the gearbox, son." "Could be." "Daddy, what if it's not? " If the slee ve measu re less th an 21 .0 m m , obtain the proper speed o kit fo r th is m odi ficat io n. Go to y o u r local bicycl e (yes, bicycle) shop an d as k fo r the " Hure t No . 783" 8 Speedometer Kit." It shouldn' t be much m ore th an $9 .5 0 (plus ta x) . T h is p articu lar kit has an odo me te r. Ste p three Next you must remove th e front ax le an d wh eel fro m your bike. To provide en ough roo m between th e front hub and the fork, remove ap p ro x im a tely 2 -2 . 5mm fro m the hub on th e no n -b r ake-d ru m side. 0 0 this by gr indi ng, filing, orh ave a mach in e shop _ do it . It is simple to do it yourself by holding the wheel up to a grinder. The: amount of metal remo ved should be even all the way around. This step ",;11 pr ovide part of the room ne cessary for fitting the speedo drive mechanism . - Step five T he last step prior to insUnation on your bike is t o give the center of the drive mechanism an inside diameter which matches the outs ide diameter of the hex head sleeve, (m eas uring the -slee ve and not the nut), by grinding or filing. Try to ma ke it as sn ug a fit as possible, b ut the snugness isn 't rea l cri tical sin ce the fo rk recess wi ll hold it in p lace q uite well. Try to kee p the ho le as concentric as possible. Step four To obtain the r es t of the ro o m necessary for the d rive ' mechanism, gr ind or file at least 4 .0mm from the sid e o f th e left fork where the drive me ch anism will go . This will not o n ly recess th e mechanism into th e fork bu t also help sec u re it so the m ech anism ho using will no t t urn wi th th e wh eel. After the fork has be e n gro und do w n, shor ten the spacer which rides in the center of the hub sea l. S tar t with the end that has t he flange and grind th e space r d own until it is o n ly 8 .0 m m long Ste p six . Now install the drive m ech an ism w hile re- assemblyin g the bike. Remember to be nd the two lo ng metal arms r rom the mechanism over in to the sp o kes since this is wh at drives th e unit. Xo w go out and win an enduro! 37