Carburetor settings - EZ90

Discussion in 'Tech Area' started by walbright, Aug 13, 2019 at 6:48 PM.

  1. walbright

    walbright New Member

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    I'm new to this forum and am trying to get a 1993 Honda Cub EZ90 running again after it has sat idle for several years. We've had the carburetor off and thoroughly cleaned it. Flushed the gas tank and put in new gas. Sucked out the injector oil and filled with new Honda GN2 injector oil. Unfortunately, we can't get it to run. The only way we've been able to get it to start is if I "manually" choke it by putting my fingers over the intake. If I remove my fingers, it dies. It doesn't seem to matter what I do with adjusting the jets. Any ideas on what is going on here? Thanks.
     
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  3. OLD CT

    OLD CT Well-Known Member

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    Did you remove both of the jets and the main jet holder to clean the emulsion tube?
     
  4. walbright

    walbright New Member

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    I wish I were more of a mechanic! We did remove the two jets and cleaned them. We also removed the adjustment "screws" and cleaned them. I don't know what the emulsion tube is.
     
  5. OLD CT

    OLD CT Well-Known Member

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    emulsion tube.jpg I am not familiar with the EZ90 but do remove the carb and bowl to post a pic of the jets. The emulsion tube on a CT70 4 stroke is the brass hex nut that the main jet goes in.

    The emulsion tube is on the far right. It has a bunch of tiny holes in the side that need to be rodded out with something the size of a 'bread tie' wire, after you remove the paper or plastic off it.
     
    #4 OLD CT, Aug 13, 2019 at 7:09 PM
    Last edited: Aug 13, 2019 at 7:17 PM
    Anthony Campano likes this.
  6. Anthony Campano

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    Hi I wish old ct lived in the north east I’m in ri. He knows his bikes
     
  7. walbright

    walbright New Member

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    Thanks for your comments. As soon as I get a chance to pull that carburetor off, I'll post some pictures for you to review.
     
  8. Anthony Campano

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    Thx I’ll wait for your picture of the carburetor thank you Anthony.
     

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