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trialsrfun

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About trialsrfun

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    Midlands UK
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  1. trialsrfun

    1980 (525) TY 175 Project

    You need to replace the O rings that surround the jets these fit into the float bowl and when worn cause all sorts of running problems.
  2. trialsrfun

    Triumph Tiger Cub Crankcase Oil Capacity

    I have the UPB thin clutch plates with 16t engine sprocket and tensioner. I seem to remember someone saying the belt drive pulley being about 17t equivalent on the PK belt drive conversion. By comparison I have a Villiers engined bike fitted with a Villiers Services 17t sprocket (similar pitch primary chain to Cub but single row) and nylon tensioner running with complete satisfaction which made me question if the mains are to blame for the noise made by the Triumph Cub.
  3. trialsrfun

    Triumph Tiger Cub Crankcase Oil Capacity

    Brucey do you have a 16t crank sprocket with tensioner is it that which makes a noise, is the noise inherent due to the tensioner or does the amount of free play make a difference my bike also rumbles from the tensioner area might the noise be due to wear on the main bearings?
  4. trialsrfun

    Beta Evo Models

    https://www.beta-uk.com/index.php/downloads or here
  5. trialsrfun

    Did it scare you ...

    Hi Steve it will become easier as you get used to it just find somewhere fairly open to play ride around, at least you now know what happens when you open her up.
  6. trialsrfun

    framed mounted chain tensioner

    There is no reason why the set up you have should not work but when the tensioner is swing arm mounted spring tension remains constant throughout rear wheel suspension movement whereas if the tensioner is fixed to the frame it then varies due to the chain moving nearer to or further away from it, obviously the nearer to the gearbox sprocket you can fit the tensioner the better .
  7. trialsrfun

    framed mounted chain tensioner

    I have found the TY175 type work well when mounted to the swing arm on my PJ bike, fit it immediately behind the footrest mount checking the suspension movement arc for clearance between tensioner bolt and frame. Because they are outside the chain not between chain and tyre mud is not scraped off the tyre by the tensioner arm.
  8. trialsrfun

    paul jackson framed cub

    It is looking good already, what engine set up will it be 199cc, also are you staying with the Montesa forks?
  9. trialsrfun

    Help with Identifying Sherpa

    Possibly a MAC frame there are similarities but whatever it looks like a good bike to own.
  10. trialsrfun

    paul jackson framed cub

    Do the pictures show the bike you have?
  11. trialsrfun

    1974 Montesa 247 Cota

    Barfast Engineering Supplies Engineers' merchant in EnglandOpen OVERVIEW REVIEWS PHOTOS 1 of 3 DIRECTIONS SHARE Barfast is the place to go for metric fine or non iso metric sizes. SAVE Watermills Rd, Newcastle ST5 6AT Open ⋅ Closes 5PM
  12. trialsrfun

    Sherpa Kickstart

    Please include me in as interested in one of the kickstarts.
  13. trialsrfun

    TY 175 front exhaust pipe

    I like the look of the tyoffroad system you have on your bike feetup, did the Yamaha heat shield fit easily to it.
  14. trialsrfun

    TY 175 front exhaust pipe

    Thank you feetup, I have found a long exhaust pipe and silencer set up essential for good performance with the Villiers engines.Plan is for a Kato type pipe for the TY 175.
  15. trialsrfun

    TY 175 front exhaust pipe

    I am thinking of making a new front exhaust pipe for a Yamaha TY 175 but have variously read that lengthening/shortening the front pipe on a TY 175 brings about a performance improvement but which is right longer or shorter, what difference would either option give?
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