Choked my choke isn't working
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Thread: Choked my choke isn't working

  1. #1
    Junior Member papa wheelie's Avatar
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    Choked my choke isn't working

    Hey Tdub community,

    Riding season arrived here a little while ago, so I pulled my Tw out of (dry) storage for the season after 6 months. Kept it winterized with a 3/4 full tank & fuel stabilizer. Pulled the choke out half way and it cranked but no start. Pulled it out full with same result. Had the choke pushed all the way in and gave it a little crack on the throttle and it started right up. I kept the idle steady until it was warmed up and I took it for a 30 min ride around town with no problems, whatsoever. When I came home I opened the choke half way and it died again. I was hoping everything would be fine after a good spin.

    I'm in the PNW and the temp was at 17c / 66F this morning. I replaced the chain and sprockets (15/50 so good!) but bike worked fine before I stored it. I haven't checked the condition of the spark plug because I have every deep socket except the 18mm. I do maintenance on my bike but have never done any carb work.

    Any idea why my choke is choking out?

    Thanks in advance.



    2002 TW200
    jtomelliott49 likes this.

  2. #2
    Senior Member Ski Pro 3's Avatar
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    If your bike starts cold without problem and no choke, it's running too rich. How's idle speed? Try adjusting idle knob for effect. Take a rubber mallet and smack the carb a couple times too. That's all I got for now.
    The bear slayer!

  3. #3
    Junior Member papa wheelie's Avatar
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    Quote Originally Posted by Ski Pro 3 View Post
    If your bike starts cold without problem and no choke, it's running too rich. How's idle speed? Try adjusting idle knob for effect. Take a rubber mallet and smack the carb a couple times too. That's all I got for now.
    I tried adjusting the idling screw down as well as up and both had no effect. It's idling normally at this point. When you say smack the carb are you talking about the float bowl?

    Thanks Ski Pro
    jtomelliott49 likes this.

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  5. #4
    Senior Member Fred's Avatar
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    A stock spark plug may be removed using the on-board OEM tool kit.
    As you speculate a carb smack could jar loose a sticking float needle, but a stuck float would usually cause much more serious symptoms.
    A carb smack could also free up a sticking needle. On some models the needle is held seated in it's holder by a small fairly weak spring. If bound up in it's holder the needle would always be partially lifted thus accounting for rich running behavior.
    2003 TW200 "Betty Boop"
    2006 TW200 "Nibbler", a.k.a. “Mr.Gizmo"
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  6. #5
    Junior Member papa wheelie's Avatar
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    Tapping didn't seem to loosen anything up. Bike seems to run fine the way it is just have to use the throttle to warm it up rather than the choke. Is it bad to continue to ride it if it's running rich?
    jtomelliott49 likes this.

  7. #6
    Super Moderator littletommy's Avatar
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    I always try a strong dose of SeaFoam first, try 3 or 4 ounces, ride around for a while and see if there is a difference.
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  8. #7
    Senior Member Fred's Avatar
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    LT, how about "ride around for a Wheelie and see if there is a difference"?
    Glad to see Littletommy's input again, we missed you for awhile
    2003 TW200 "Betty Boop"
    2006 TW200 "Nibbler", a.k.a. “Mr.Gizmo"
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  9. #8
    Senior Member elime's Avatar
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    What LT said only dump the old gas and start anew with fresh from the pump gas.
    littletommy likes this.
    Long live the internal combustion engine!

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