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Problems with my 250r 2010 Megelli

Discussion in 'Megelli 250cc' started by Scott, Aug 30, 2013.

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  1. Scott

    Scott Member

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    Yeah mate and storm supporter lol.
    Mate I've like em since the chief was playing
     
    • Like Like x 1
    Last edited by a moderator: May 16, 2014
    Scott, Sep 16, 2013
    #61
  2. Scott

    Scott Member

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    Can anyone tell me when I change front and rear sprokets how do I get more top end speed and more pick up. I can see how to get more top end but to get more top end I have to loose pick up am I not right ?
     
    Scott, Sep 18, 2013
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  3. GreyImport

    GreyImport Administrator Staff Member The Chief Contributing Member

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    GreyImport, Sep 18, 2013
    #63
  4. risky

    risky risky

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    theoretically yes but the mixture change with new main jet may change that.
     
    risky, Sep 19, 2013
    #64
  5. Scott

    Scott Member

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    Ok the standered jet is a 1.45 what size should I go to would a 1.5 be to big ?
     
    Scott, Sep 19, 2013
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  6. risky

    risky risky

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    ask sinh as they have racing bikes.
     
    risky, Sep 21, 2013
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  7. Scott

    Scott Member

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    Yeah I did risky but he wasn't sure i think I'll see how it goes with the sprokets go first then May go to a bigger jet.
     
    Scott, Sep 22, 2013
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  8. risky

    risky risky

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    take the lid off the airbox and you will get a power increase.
     
    risky, Sep 22, 2013
    #68
  9. Scott

    Scott Member

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    Hi all
    My bike has been running very well in the last few months I've changed the rear spoket 6 teeth less now put a bigger jet in the carby but in the last week or so my bike has been running like **** it won't idle and seems to have a miss I've gone back to the std jet put a new plug in and have changed the coil and it still seems to be playing up any ideas of what it may be?
     
    Scott, May 14, 2014
    #69
  10. Th3_Huntsman

    Th3_Huntsman Senior Member Contributing Member

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    Bad fuel? Blocked pilot jet? Vacuum leak?
     
    Th3_Huntsman, May 14, 2014
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  11. Scott

    Scott Member

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    Carby has been pulled apart and cleaned twice replaced the fuel as well the only thing I haven't checked is the vacuume how would I check that
     
    Scott, May 14, 2014
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  12. Th3_Huntsman

    Th3_Huntsman Senior Member Contributing Member

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    Not being familiar with the bike, firstly I would check the carbs are screwed into the boots firmly. Then spray carb cleaner around the area as the bike is running if your revs rise there is a vacuum leak somewhere!
     
    Th3_Huntsman, May 14, 2014
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  13. Scott

    Scott Member

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    Ok thanks I'll try that tomorrow
     
    Scott, May 14, 2014
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  14. GreyImport

    GreyImport Administrator Staff Member The Chief Contributing Member

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    Yea as Huntsman says ...if youve had the carbys off check everything is seated correctly and tightened firmly .... its not an old bike but check the rubbers are ok visually as well ... also all hoses etc are right and in good shape
     
    GreyImport, May 14, 2014
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  15. Scott

    Scott Member

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    Ok i wanna go back to the bigger jet it should be ok hey
     
    Scott, May 14, 2014
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  16. Th3_Huntsman

    Th3_Huntsman Senior Member Contributing Member

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    I would try and sort out the problem first, easier to do with a stock setting as it takes a variable out of it. Once sorted you can put it back..... As if I deciphered your post correctly the bike had been running well on the bigger jet for awhile.
     
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    Th3_Huntsman, May 14, 2014
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  17. kiffsta

    kiffsta Senior Member

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    If it's not a carb issue, then have a look at your Petcock, megelli had issues early on with them

    Chris


    Sent from my iPhone using Tapatalk
     
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    kiffsta, May 14, 2014
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  18. risky

    risky risky

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    if a vacuum operated petcock go to a manual one and block the vacuum line off.importer did this on all water cooled ones.
     
    risky, May 15, 2014
    #78
  19. Scott

    Scott Member

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    so where would i get a manual petcock from
     
    Scott, May 16, 2014
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  20. risky

    risky risky

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    it is a screw on, so undo yours and look at a bike wreckers or bike shop OR eBay.

    from eBay the Honda ones look the same as fitted now but check out the pit bike sellers. Chinese would be cheaper than Honda.
     
    Last edited by a moderator: May 16, 2014
    risky, May 16, 2014
    #80
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