Does your FZR do this?

Discussion in 'FZR250.com - Archives' started by Muck, Dec 9, 2004.

  1. Muck

    Muck New Member

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    I've seen posts here that some bikes need to be revved up from time to time to clear excess fuel and stop the bike from stalling out when at tick over.

    My one used to do this, but I fixed it. <!-- s:) --><img src="{SMILIES_PATH}/icon_smile.gif" alt=":)" title="Smile" /><!-- s:) -->

    It turned out that the float height was set wrong, it was too high. Now I have set the float height lower, there are no such problems at all.

    Woohoo!
     
  2. FiZzR

    FiZzR New Member

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    Yes, mine stalls at idle sometimes when it's been thoroughly warmed up (usually after riding 20ks or so)

    This could be the problem with mine - how do you adjust the float height?
     
  3. Boz

    Boz New Member

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    That was the problem with my old one. Knew it had something to do with carbies, but couldn't be bothered looking into it / fixing it (as the temporary solution was working for the long term).

    Thanks for the tip!
     
  4. Muck

    Muck New Member

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    Setting the float height involves taking the carbs off the bike. You have to take the float bowls off the carbs and bend the metal tab that pushes the needle valve so that the needle valve closes a little earlier.

    The official way of measuring the fuel level in the carbs is to get or make a fuel level guage, plug it into a float drain and open the drain valve. The other way is by reducing the fuel level a little at a time and seeing how if affects the running. I reduced my float level by about 3mm to 4mm at a time.

    The only problem being, if you get the fuel level too low the engine will splutter and miss under power. You already know about getting the float height too high.

    The other way, is to take the bike into a garage and pay your money. <!-- s:) --><img src="{SMILIES_PATH}/icon_smile.gif" alt=":)" title="Smile" /><!-- s:) --> (something I have not go at the moment)
     
  5. Adaml

    Adaml New Member

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    I also had this problem
    The correct float hight is 4 to 6mm below the line you will find half way up the float bowl.
    I got this from the FZR400 manual but mine now runs sweet!!
     

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