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84 HD roadster choke keeps engaging

Discussion in 'Motorcycle Tech Talk' started by hdguy, Aug 24, 2011.

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  1. hdguy

    hdguy New Member

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    I have a 1984 HD roadster which runs fine except as I ride, the choke comes out. This has the effect of the bike running at about a quarter throddle, even when the throddle at the handlebar is completely off and results in a dangerous situation. How can I stop this from happening?
    hdguy, Aug 24, 2011
    #1
  3. cowboy

    cowboy Moderator Staff Member

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    Is the choke handle vibrating out ?or just the butterfly closing ?
    cowboy, Aug 24, 2011
    #2
  4. Tommyc

    Tommyc Active Member

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    rebuild the carb, or put on an S&S.
    Tommyc, Aug 25, 2011
    #3
  5. hotroadking

    hotroadking Super Moderator Staff Member

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    Might need to have a new cable,
    on my CV that would happen if you
    improperly set the tension screw on the back of the cable
    where it connected to the tank

    If you have the same cable, adjust the screw behind the
    tank mount and then retighten the front screw on the cable
    hotroadking, Aug 25, 2011
    #4
  6. chucktx

    chucktx Moderator Staff Member

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    +1.....nothing wrong with the carb......adjust the choke tension....
    chucktx, Aug 25, 2011
    #5
  7. Tommyc

    Tommyc Active Member

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    wow, that was an easy one!
    Tommyc, Aug 25, 2011
    #6
  8. chucktx

    chucktx Moderator Staff Member

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    :):d:d
    chucktx, Aug 25, 2011
    #7
  9. Tommyc

    Tommyc Active Member

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    HDguy, are you new to Harleys?
    How did you end up with a 1984 model H-D?
    Do you have a manual for it?
    Tommyc, Aug 25, 2011
    #8
  10. FLHTbiker

    FLHTbiker Moderator Staff Member

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    I had the choke adjuster nut that got cracked and did the same thing, would not stay tight. I simply replaced the chock cable and worked fine. Good luck.
    FLHTbiker, Aug 25, 2011
    #9
  11. Tommyc

    Tommyc Active Member

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    Maybe that's why the S&S carbs don't have a choke cable or adjuster nut... They break!
    Tommyc, Aug 25, 2011
    #10
  12. hotroadking

    hotroadking Super Moderator Staff Member

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    SNS carbs are good, but old style

    I prefer the CV carb over them, and the Mikunis as well

    With the CV I got a lot smoother tq curve, less dips
    and better fuel mileage and driveability..

    Not a shot at SNS but if you stick a CV on
    one of the shovels you'll never go back....
    hotroadking, Aug 25, 2011
    #11
  13. cowboy

    cowboy Moderator Staff Member

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    My bro in laws did the same thing & hid did it while we where out riding he didn't expect it got a strange look when he Troyes to stop & the throttle didn't
    cowboy, Aug 25, 2011
    #12
  14. baggerpaul

    baggerpaul Well-Known Member

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    if the tension adjuster is not enough . try to crimp it just so slightly with pliers to ad some drag tension to the cable so it wont vibrate out .
    baggerpaul, Aug 25, 2011
    #13
  15. Tommyc

    Tommyc Active Member

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    Will they work on a 93 ci motor?
    When I'm cruising slow and I hammer the throttle the bike hesitates slightly before jumping, what could be the cause? Accel pump needs adjusting?
    Tommyc, Aug 26, 2011
    #14
  16. baggerpaul

    baggerpaul Well-Known Member

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    a well modified 40 cv will take up to a hundred horse
    baggerpaul, Aug 26, 2011
    #15
  17. chucktx

    chucktx Moderator Staff Member

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    yup. and after that get a bigger cv carb!!!!!!!! lol
    chucktx, Aug 26, 2011
    #16
  18. baggerpaul

    baggerpaul Well-Known Member

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    yep and a 44 cv will feed a 124 ci 133 hp motor no problem . if i wanted a lawn mower on off carb i would buy a sns.:roflmao:
    baggerpaul, Aug 26, 2011
    #17
  19. baggerpaul

    baggerpaul Well-Known Member

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    only a joke they are good carbs tommy! sns have there place had one on my sporty with a 114 ci sporster motor. it did one thing hauled ass!!!:D
    baggerpaul, Aug 26, 2011
    #18
  20. cowboy

    cowboy Moderator Staff Member

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    Had a sns on my shovel it never did run right so I redid the bendix carb & she ran great even at 100 in , that was a lot of years ago , they/we did'nt have all the good stuff of today I would have gone to a CV if they had them or I knew about them back in the mid 70's
    cowboy, Aug 26, 2011
    #19
  21. Tommyc

    Tommyc Active Member

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    I will check into getting a CV. Where can I get one?
    Tommyc, Aug 29, 2011
    #20
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