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  1. Started by brianc5514,

    hi people i have just bought my sons a wee ty80 to play around on i have had racing quads ect but never trials bikes and have a few questions on the matter firstly in the oil chamber at the kick start is dry what kind of oil should be in there and how much and secondly the front shocks are squelching when brake is pressed are they knackered or have they lost oil ect if not how do i fill them to level the bike was advertises as a pw 80 so the guy thought i had seen bigger ty,s before but never owned one of these bikes thanks

    • 4 replies
    • 2.6k views
  2. I have a TY250 (Yamaha Trials) -1974 that is in great shape. It starts up fine, revs, as well as idles just fine. When I place in gear and accelerate it bogs down. It's like it's choking for fuel. I can hold the choke down and this helps a bit, but eventually dies. Does anyone have any idea what might be causing this. I've been through the fuel system about three times already. Taking all advice as would like to get this thing up into the hills and start riding the ridges... thanks for any help you can provide..

      • Like
    • 5 replies
    • 3.1k views
  3. Started by tjp,

    Hi Chaps, I'm looking at picking up a TY175 very soon and I was hoping to get a little advice on what to look for? eg any known issues etc. Thanks in advance for any advice

  4. Started by shercosteve,

    I am ready to change the oil in my forks on the 250. Can anyone recommend which weight oil works best and how much per leg? Thanks Steve

    • 2 replies
    • 6.8k views
  5. Started by shipdamite,

    hello all, I have just bought a ty 175 for twinshock trials with the local club. after some shed time and research time, the bike has the following faults: * autolube has been removed, leaving the autolube pipe unplugged and hanging off the carb * exhaust baffle had been squashed closed in a vice * a piece of sponge as an air filter * blow by on the piston when viewed from the exhaust port * although it did run ok, the bike refuses to idle unless the choke is on / idle screw removed and hole blocked with finger * what appeard to be play on brake side rear wheel bearing, but was play between brake drum and wheel. I have * plugged intake for autolube pipe * opene…

    • 11 replies
    • 5.6k views
  6. Started by tyjay,

    Well was stripping my bike down weekend fitting new electronic ignition sammy miller seat unit ect just need to get a wes exhaust now and I'd. Be happy but getting to the point I thought I'd count the teeth on the front sprocket and its a 11 and the rear sprockets a 41 to me I'm thinking this is why the bike felt terrible to ride up hills ect can sum one give me advise and how would that gearing compare to a 12 51 ?

    • 3 replies
    • 5.2k views
  7. Started by neil0965,

    I

  8. Started by tony27,

    I've got my TY250C coming apart for main bearings, seals & a rebore to 1st oversize & want to know is there any way to improve the action of the clutch while the engine is in bits. The basket & hub are in good shape but I found the clutch to have very narrow range of engagement almost like a lightswitch which is a problem when making full lock 180deg turns as found in modern clubmans sections Levers are domino trials & the cable is a new venhill, action is quite light so I don't see any problem there Any suggestions or is this how they are?

  9. Started by martyb,

    Hi all, Im thinking of upgrading my old sammy miller fuel tank/seat unit and was wondering if anyone knows where I can get an alloy tank from?

    • 2 replies
    • 2k views
  10. Started by cleaner,

    I am putting Falcons on my 175. I have the top mounts moved forward 100mm and I was going to go for the standard length Falcons but now am thinking about longer. Any opinions?

      • Like
    • 4 replies
    • 4.5k views
  11. Started by cleaner,

    I am about to replace my throttle with a Domino. What does everyone prefer, the slow or fast action?

  12. Started by pitley,

    Anyone here know the oil capacity per fork leg on a ty 175? Im too tight to buy a manual....

    • 2 replies
    • 3.5k views
  13. Started by pschrauber,

    Hi, I' am rebuilding my twinshock TY, this is a long time project, whenever I have time I do something for the bike .... Anyway the airbox of the TY 125 / 175 is very tiny it has more likely the size of a can of sprats then a airbox for a 175 to 200cc motor. A larger one should improve power output. Can any one tell me where I may get a larger capacity airbox for my TY, also some stories / how to ... for custom made air boxes would be very nice too. Many Thanks Patrik

  14. sorry guys for all the questions will a ty250 twinshock swing arm fit straight on my ty175 twinshock ???

    • 1 reply
    • 1.2k views
  15. Started by davdeborg,

    hi can anyone help whats the recommened front and rear sprokets for my ty175 only used for light trial riding not used on the road many thanks

    • 3 replies
    • 3.1k views
  16. hi been reading on here about changing fork seals i have a little leak nothing magor if i remove fork leg and remove the clips that hold seal in place and manage to remove seal from the top can i not slide new seal down fork leg press into place and refit clips etc can you do it this way or do you have to strip forks????? help advice appreciated many thanks

    • 5 replies
    • 2.3k views
  17. Started by scot taco,

    I,m pretty sure that I have read that a Majesty tank will not fit on a stock TY.Why is that the case? Is there any way to make it fit or does it take extensive frame mods to do so?

  18. Started by cleaner,

    Has anyone ran a D803 on the back of a Ty175? Will the tubeless seat and stay on?

      • Like
    • 1 reply
    • 1.2k views
  19. Started by shipdamite,

    evening, as per title - does anyone use a dave cooper rack to carry thier ty about? many thanks.

    • 11 replies
    • 2.7k views
  20. Started by davdeborg,

    can anyone give the overall length of a ty175 stand please

    • 2 replies
    • 2k views

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