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is there Anyway to Just kill the #4 carb

Discussion in 'XJ Technical Chat' started by jonnymaritime, Jan 24, 2009.

  1. Zookie400

    Zookie400 Active Member

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    hanging idle could be lean pilot settings
     
  2. Robert

    Robert Active Member

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    Another thought is the throttle shaft seals...
     
  3. jonnymaritime

    jonnymaritime Member

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    as it is all my pilots are turned in all the way (tight) thats how they were when I dissasembled them . I tried to turn them in to count how far out they are , but they were In already and stuck. I shaved a flat head screwdriver to fit in perfectly and applied a little heat with a mini torch and it let go (2 were stuck).

    Are the shaft seals the rubber on the side of the carb, where they are all connected?
     
  4. Zookie400

    Zookie400 Active Member

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    "Are the shaft seals the rubber on the side of the carb, where they are all connected?" i think you have the right spot

    you could try the un-lit propane torch trick to find any vac. leaks, including the shaft seals. move the torch around and see if the engine revs up (or stalls out). when it does, you found a vac leak. dont be fooled by the propane being sucked into the pods.
     
  5. jonnymaritime

    jonnymaritime Member

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    Ill try that tomorrow.
    thanks Zookie
     
  6. jonnymaritime

    jonnymaritime Member

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    ok i got a vacume gage. I hooked it up to #4 and the gage needle is dancing everywhere.? when I give throttle to 3000rpm it stays at 5hg
     
  7. wizard

    wizard Active Member

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    have you got a fuel filter & a restrictor in the line?
     
  8. MN-Maxims

    MN-Maxims St. Paul Minnesota

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    I have an aquarium air valve in my vacuum gauge line. Works great
     
  9. jonnymaritime

    jonnymaritime Member

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    I have no Idea how this thing works., And there is no instructions found in the forum...
    What should it read on the manometerand what is "cm hg"? At the moment it idles at 2000+- rpm on my tach.
     
  10. jonnymaritime

    jonnymaritime Member

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    Well its tuned , I have it idle at 1100 rpm, throttle response is good, a little boggy but better than ever. I took it for a very short 1 km road run on the dry and frozen street ....ZOOM! holy SHITE! I cant believe I Whatr ive been missing.

    1 .Now the new problem Ive discovered is After the run the throttle sticks and sloooowly goes back down to 1100 rpm, Unless I push down on the throttle adjustment screw, which has brought ne to the conclusion that the #3 and 4 screws are not the originals and have much less resistance..Ill replace those for some harder ones... Guess I can find them at a hardware store.

    2. Now Ive noticed that I have alot of Exhaust or BLOW Bye coming out of the crankcase hose end.. Almost burning smell .

    Maybe im running too lean with the pods? Where can I channel this blow bye ? As the original case captured it and sucked it back into the engine now its fumey stank is just venting under my arse.
     

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