South Wales Trail Riders

    over revving dt

    Shepy aka THE DUKE

    Posts : 1597
    Join date : 2010-06-06
    Age : 45
    Location : valleys

    Re: over revving dt

    Post by Shepy aka THE DUKE on Tue Feb 14, 2012 9:45 am

    geraint powell wrote:oh yea plenty of that miller lol! think i've found the problem after wriggling the carb out "worn float valve" and the powers that be at yamaha only sell the complete kit don't sell individual piece's so gotta fork out 32 quid affraid



    Posts : 347
    Join date : 2010-06-08
    Age : 57
    Location : pentyrch,nr cardiff

    Re: over revving dt

    Post by ogri on Tue Feb 14, 2012 2:09 pm

    a worn float valve would lead to fuel coming out of the overlow tube on the carb.

    "hangin idle" is usually a result of an overly lean mixture hence the problem resolving itself when you use the choke.

    does the throttle return quickly and fully? you would be amazed the symptoms that a single strand of frayed wire can cause in a control cable.

    possiblity of a small hole or tear in the inlet manifold of a bike of that vintage due to the rubber perishing.start bike and spray WD around the whole of the inlet manifold and listen if the revs drop or increase.

    geraint,i think it would be wise to investigate further before lashing out on parts that may ultimately prove superfluous.

    Posts : 1348
    Join date : 2010-08-31
    Age : 51
    Location : Pentonville

    Re: over revving dt

    Post by geraint on Tue Feb 14, 2012 5:16 pm

    will check the throttle cable, and the other suggestions, i was going down the cross off the possible cause's list, hoping it does'nt get expensive, cheers for the advice everybody cheers

    Last edited by geraint powell on Tue Feb 14, 2012 8:35 pm; edited 1 time in total

    Posts : 118
    Join date : 2011-08-27
    Age : 69
    Location : blaina

    Re: over revving dt

    Post by Ralph on Tue Feb 14, 2012 5:21 pm

    Come on, how do you expect geraint to understand 'superfluous' that word is as long as wheelbarrow. :16:

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    Re: over revving dt

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