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gas still soaking my #4 carb, making its way out of my exaus

Discussion in 'XJ Technical Chat' started by jonnymaritime, Sep 24, 2008.

  1. jonnymaritime

    jonnymaritime Member

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    Well it turned my idle mixture screw out 3 turns, then slowley brought it back into 2 and 1/2 and its still pissing gas out of the exhaust, its costly and stinky.
    Aside from that, the bike revs a bit high in neutral (3000) rpm when at a stop, after running. if I throw the choke on and off real quick it goes back to 1500. I assume something its stuck or sticking. OH I should mention when Im running on fumes ..REserve ..the bike suddemly gets a shit load of more power in spurts.

    Other than those few things I ride this bike as a daily commuter, 90 min a day and I love it.
     
  2. RickCoMatic

    RickCoMatic Well-Known Member

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    John:

    You have to determine why the 3-Hole ain't firing.
    Having gasoline spit-out the exhaust pipe isn't something you want to happen.

    You could wind-up with an explosive mixture of fuel that could be very harmful to someone if the collector or a silencer contains just the right air-fuel mixture to just up and explode and send a metal fragment flying.

    Adjusting the Pilot Mixture Screw won't get the hole back in the game if there is some other problem keeping that cylinder from firing.

    I could be any number of things.
    The first thing you need to know is that holes compression value.
    If the compression is too low; that'll keep it from hitting.
    You could have a bad Coil.
    Coils on many of the '80-82 Bikes are dropping like flies.

    Troubleshoot the situation.
    It might be something very serious that could let-go and leave you stranded.
    On the bright side; it might be something as simple as trimming-back a Plug Wire a quarter-inch and being right back in it ... hitting on all four!
     

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