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Twinshock

  1. Started by markmaltby,

    I have bought a stop switch for my bike and want to make sure im wiring it correctly. The switch is open circuit until pressed. Do i need to put one of th wires from the switch to a earth point so when depressed it shorts the wire from the coil to earth and therefore stopping the engine. Cheers Mark

    • 2 replies
    • 1.7k views
  2. Started by someday,

    How easy is it to fit a C15 rear shinging arm to a Cub? Or another way to change the rear end to take a 400 tyre.. Thanks

    • 0 replies
    • 1.7k views
  3. Started by jamieson,

    Hi there! Does anyone know if Montesa Cota 247 & 348 fork springs are interchangeable, i.e. the same part No.? Cheers

    • 0 replies
    • 1.6k views
  4. Started by bigian,

    I am not the biggest e bay fan and thought i would offer some Ossa Mar left foot brake pedal and brake assembly Parts on trials Central first. if anyone has a interest please post back. Ian.

    • 1 reply
    • 1.6k views
  5. Started by duckwizard,

    Need information on 38 mm dia forks. The diagramatic assembly of the damper. Have stripped mine and want to check everything is ok. Need to remove old fork seals without damaging the legs. Can anyone help with copies out of manual etc.

  6. Started by taylo63,

    Hi All I have a 75 Cota 247 which on the whole runs very well.but smokes excessively ( even for a 70's twostroke). I am thinking that it could be a crankshaft oil seal? The reason I think so is because when i remove the spark plug and smell it I can smell gearbox oil. So...assuming it is a crankshft oil seal has anyone had first hand experience of replacing one? I assume the oil seal is on the clutch side? Do you require any specialised tools and is it something that could be done with a bit of mechanical knowledge.. Any comments would be most welcome Regards

  7. Started by old trials fanatic,

    Just a quickie. I cant remember the size and pitch of the bolt that secures the damper assy on a MAR. Anybody know as i've found a pair of forks in bits i had forgotten i had, having a sort out in the shed, and want to put them back together and use in one of the "projects". Cant find the thread pitch guage

    • 3 replies
    • 1.6k views
  8. Started by metisse,

    Bonsoir, Being dragged back to Blighty for a wedding around the August bank holiday, might soften the blow if I could get a trial in whilst there, anything on please, will be staying in Helford, so a nice part of the world. If anybody could let me know so I can start working on the wife now............you know whack the bike on the rack under cover of darkness etc etc.... Thanks vm

    • 2 replies
    • 1.6k views
  9. Started by jaan,

    Have I to oil the new air filter foam of Montesa Cota 348? The Owner's Manual tells nothing about this matter.

    • 1 reply
    • 1.6k views
  10. Started by jordi,

    Does any one on here know of a contact number or website/e-mail addres for Craig Mawlem, he was able to supply Majesty parts etc. Is he still trading? Thanks

    • 1 reply
    • 1.6k views
  11. Started by kawasarki,

    Is anybody out there interested in 4 stroke kawasaki trials bikes e.g. Gollner bike & has anybody got pictures or advice on how to build one. Thanks

    • 0 replies
    • 1.6k views
  12. Started by scotty,

    How do you remove the small allen bolt at the bottom of the fork legs (ie stop it revolving inside?) as i want to strip my forks on my suzuki? thanks in advance!

    • 1 reply
    • 1.6k views
  13. Started by scotty,

    This is the web address for the translation of the TY page into English. Click on Yamaha ty in the top right hand corner to bring it up. http://66.218.71.231/language/translation/...fr=FP-tab-web-t

    • 0 replies
    • 1.6k views
  14. Started by ed bremner,

    My Cota 247 is back working again....which is a gas. Still plenty of work to do though....front wheel is buckled and I have another one turning up soon. Shockers are pretty buggered....and new chain & sprockets can't be far away. BUT most pressing problem is that it is just very VERY loud. Problem is that it doesn't have any of the original exhaust silencer beyond the fist pipe. It has got one silencer in the place of the middle box which is from a Suzuki RGV250. Looks good but to all intensive purposes is just a through pipe. I know that Dave Renham has got some original back boxes.....but this bike is anything but original and I am quite happy to build a sile…

    • 1 reply
    • 1.6k views
  15. Started by brian r,

    Looking for a cheap pair of trials shocks. The cheapest I found are $115.00 from Speed and Sport. Any one found any cheaper? This is for a bike that will be for sale soon. For a keeper I'd get the Falcons.

    • 0 replies
    • 1.6k views
  16. Started by trialsrfun,

    Which part of the rpm range is influenced by the air jet in a Mikuni VM26 carb please.

  17. Started by scottt,

    Reading other post the normal thing to do to a Pre 65 bike is to fit more modern internals into the front forks, has anyone tried fitting modern internals into there twinshocks forks, or is it that modern forks are just so much thicker? I've got a TY 175 that could seriously do with something doing with the front forks, i was thinking of perhaps putting some more modern springs into it any ideas what might fit?

  18. Started by dannybrear,

    Anyone know where i can get a Montesa 349 Crank? Any pionters on where to start and what sort of price they may be? Cheers

    • 2 replies
    • 1.6k views
  19. Started by terry93,

    Is it possible to restick magnets to magneto, do you need all the magnets for it to work? any info most welcome thanks.

  20. Started by IDC,

    Just about complete now, although you can always find more to do. Time to get on with my Ossa TR77 now.

    • 0 replies
    • 1.6k views

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