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Info Megelli TK MV 34 Fuel Bowl Gasket, Needle Valve Leaks and Needles

Discussion in 'Megelli 250cc' started by mgmegelli, Apr 28, 2020.

  1. mgmegelli

    mgmegelli Active Member

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    After finding that the TK MV 34 carbie does not exists anywhere except on a Megelli, it seems that a Yamaha TW200 gasket can be made to fit with a bit of fine cutting off of the spare bits (make sure you do not cut the small nitrite ridge off anywhere as it may leak)

    https://parts.bikebiz.com.au/yamaha/2004/TW200S/CARBURETOR

    Cost is around $14 from a Yahama dealer Part number 5LB-14384-00

    Pics - bottom is the donor Yahama - top is the Megelli TKv34

    upload_2020-4-28_8-35-8.png



    After cutting the Yahama gasket

    upload_2020-4-28_8-36-41.png

    Fuel leaking out of over fill pipe - I spent a lot of time pulling off the carbie to adjust / source why etc only to find it was a perished O ring around the needle seat

    If the needle seat comes out easily, its probably perished

    upload_2020-4-28_8-40-35.png

    Also, to clean the needle seat us some jiffy / creme cleanser from the kitchen on a ear bud (by hand or use a drill) - works wonders getting the crap out

    Finally, I'm waiting for my order of a new needle off aliexpress - i'm a bit worried that it says 5.2mm but I measured mine as 5.1mm - may have to sandpaper a bit off the ridges - ps - I''ll have 3 spares so pm me if you want to buy one

    https://www.aliexpress.com/item/32597781936.html?spm=a2g0s.9042311.0.0.17714c4d8sg30R

    upload_2020-4-28_8-45-14.png
     
    mgmegelli, Apr 28, 2020
    #1
  2. my67xr

    my67xr Bike Enthusiast Staff Member Premium Member Contributing Member

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    Welcome to the forum, nice work
     
    my67xr, Apr 28, 2020
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  3. risky

    risky risky

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    welcome and informative.
     
    risky, Apr 28, 2020
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  4. mgmegelli

    mgmegelli Active Member

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    Ta - I spent far too much time finding this stuff to let it pass

    I'll also scan and upload a Naked 250SR User Manual (hopefully in better quality than the existing one :)) plus a Warranty Manual (not much good now do but hey)

    Now to fix the hard to get back in neutral issue

    ps - my 2012 bike has "Stoney Creek" plastic covers over the number plate so I guess it came from there and given the speedo says it only has 5000 kms maybe it went back a few times

    regards
     
    mgmegelli, Apr 28, 2020
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  5. risky

    risky risky

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    lots of warranty issues.
     
    risky, Apr 28, 2020
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  6. Doug Bawden

    Doug Bawden Active Member

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    2mm (if I remember correctly) O ring cord and a drop of super glue works well. I had to glue it in the bowl every 5-10mm along the groove in the bowl.
     
    Doug Bawden, Dec 7, 2022
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