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  1. Tomasito

    Nexus 3, 4, 7 or old Sturmey Archer?

    My town is super flat, I just want to take off without pedaling if it's possible, and maybe a little more speed. By the way, I bought a Sturmey Archer AW 3-speed from the 80's. I had some troubles finding the right spokes so for today I will have my wheel laced finally. Thanks for the...
  2. Tomasito

    Nexus 3, 4, 7 or old Sturmey Archer?

    Well, i sent the old SA's guy an email asking if he has one with a drum brake. It seems that all SA 3-speeds are undergeared at 1st, direct drive at 2nd and overdriven at 3rd. If you say that the old sturmey archer will hold up, I take your word!
  3. Tomasito

    Nexus 3, 4, 7 or old Sturmey Archer?

    Sorry i don't really understand your message. If you wanna know if you can put shimano rollebrakes on anything else, i don't really know, but i doubt you can. I forgot to mention that i'll use a 48cc chinagirl, and that i cannot use a deraileur because my rear wheel is 20'' x 3'', wich doesn't...
  4. Tomasito

    Nexus 3, 4, 7 or old Sturmey Archer?

    I will make something like this: http://motorbicycling.com/f3/integrated-motor-mount-jack-shaft-12284.html The SBP is really out of my reach, it costs as a new geared hub. I don't really have a problem machining and making parts, i've a big shop. So if I can make something, i can save a lot of...
  5. Tomasito

    Nexus 3, 4, 7 or old Sturmey Archer?

    Hello, I'm in the proccess of making a custom motorbicycle, and I plan to use a internally geared hub. I live in Argentina, so I don't have many options. First of all, it HAS to have rollerbrakes or discmount because my rim doesn't allow me to use rimbrakes. I don't know any other brake...
  6. Tomasito

    Brand new engine won't start =(

    I was about to do the same thing, but with the hammer against the guy who sold me the kits. And that was serious too. Luckly, for the guy (and myself that i didn't got in jail haha), i could fix it. I really understand how you feel. Please post what's your problem ;) Cheers.
  7. Tomasito

    Brand new engine won't start =(

    I forgot to put my results. That friday i changed the exhaust and the CDI. And also i sealed the manifold with high-temp silicone sealant. It worked right away. Now the only problem is that i've to have the choke like 1/3 closed for it to work right and that causes it to run too rich (oily...
  8. Tomasito

    Fresh Install Not Starting

    You can have an airleak, i'd the same problem three days ago in a brand new engine too. I've removed the manifold gasket and instead put some high-temp silicone (thoug it might not get along with gas, i'll put loctite 515 in a few days just in case), and removed the carb and put some high-temp...
  9. Tomasito

    My project [Suggestions]

    Well, don't give up just yet, you can make something like this, it isn't difficult to do: YouTube - BICICLETA CON MOTOR 95 KM/H 60 MP/H PUSHER BIKE (Look at his channel, he has many videos showing that thing) Or... You could go this way haha: YouTube - how to make a homemade motorized bicycle...
  10. Tomasito

    Brand new engine won't start =(

    Yeah, is sooo frustrating that the simplest engine on earth can cause so much headache, and my gf wanting to kill me definetly doesn't help. It's almost 5am here and i'm still thinking on this engine... I forgot to say, that i've already tested two diferent new sparkplugs (gapped to 0.028 and...
  11. Tomasito

    Brand new engine won't start =(

    Well, i've tried changing the whole carburetor for a completly new one and it was exactly the same. I also tried the needle in 1st, 2nd and 4th from top, nothing, it chokes, can't idle and goes off after 5 seconds. I'm so paranoic about this.. This is a so simple engine and i can't get it to...
  12. Tomasito

    Brand new engine won't start =(

    Well, as i supossed, the clutch was slipping, i adjusted the flower nut and it came to life. BUT, I had the carb needle in the lower (richer) setting so it ran like if it was choked. I changed the needle to the second slot from top and tested again. It didn't respond too well, the clutch was...
  13. Tomasito

    Brand new engine won't start =(

    Thanks, I'll look into those things in a couple of hours. I'll keep you posted!
  14. Tomasito

    Brand new engine won't start =(

    Hi all, I installed a kit in my girlfriend's bike, but the little $#%&$ won't fire, i ride it like 15 times arround the block trying to start it up (with the whole family on the street waiting to see it come alive) and nothing, not a single explosion. This is what i've checked: · I have...
  15. Tomasito

    My project [Suggestions]

    Oi! You might want to search the forum for rack/rear mounts, and briggs&stratton/honda engine mounts. Those engines are clones of the little hondas. Look here for something like you want to do...
  16. Tomasito

    Handle bar Pin Lock?

    Maybe he put too much force on the throttle and broke it? I cannot see another way for a crack to appear there. I just cut it with a wire cutter and tighten the two bolts (not too much, not too little). IMO, if you want a safe and way better throttle, you can allways use a moped one, they...
  17. Tomasito

    Integrated motor mount and jack shaft

    Let me answer some things i think i understood: - The shaft (what you call axis -eixo-) is a common steel bar. - The bearings are regular ones, they spin freely both ways. - The sprokets 1 and 2 are from bicycle wheels (they're called freewheels), and they spin only one way (the #1 has to be...
  18. Tomasito

    Hola!

    Hi! My name is Tomás and I'm from Argentina. I don´t have a motorbicycle yet but next week i'll be buying two kits. One is for my girlfriend's coaster and another is for a custom that i'm making. I have some experience with motorcycle mods and i've made an 70cc minibike completly from...
  19. Tomasito

    Another Argentino!!!! de Cordoba!

    SP: Tiene tapa el escape!? No tenía idea que era desarmable :p Yo todavía no me compré el motor, la semana que viene me compro dos (uno para mi novia y otro para mi). Che y hace mucho ruido sin el tubo? Porque soy de los que les gusta que ande lo más silencioso posible el motor :p Por ahí andará...