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Thread: 85 200x carb problem..running really rich at idle

  1. 06-08-2012, 04:24 PM #16
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    ailll1
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    Quote Originally Posted by dougspcs View Post
    That brings up another question..how if any way to change the float height on the carbs equipped with plastic floats??
    Put a piece of cola aluminum can between the valve and tab. You wont be able to raise the float level, only lowering. But if your running rich, you need to lower it down. I did that on my SX and that aluminum piece is still there today.

    BTW, did you check what your pilot jet size is? Seems like you didnt mention anything about it.
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  2. 06-08-2012, 04:29 PM #17
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    Quote Originally Posted by El Camexican View Post
    Just thought I'd mention that there are a lot of pilot jet sizes between not running quite right and belching out black smoke. Me thinks you have something outright wrong with either the carb or timing (cam or ignition) Wrong float heigh, or bad needle valve might do this too.
    And the winner is 'El Camexican'..seems that ignition timing was a bit out. I didn't initially look there since it didn't appear that those screws had ever been touched..what do they say about the word 'assume'???

    Well I check and reset the hall timing..it was off 3-4'. This seems to have it..a bit of a run perhaps this weekend to confirm!!

    Thanks again guys, alot of great ideas!!

    Still might like to get rid of the performance exhaust..anyone have an OEM they pulled from their 200x laying around??
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  3. 06-08-2012, 04:38 PM #18
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    Quote Originally Posted by El Camexican View Post
    That depends which side of the slide its on. Pre-slide adjusts air: in rich, out lean. Post slide controls fuel: in lean, out rich.
    i stand corrected
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  4. 06-08-2012, 05:14 PM #19
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    Quote Originally Posted by dougspcs View Post
    And the winner is 'El Camexican'..seems that ignition timing was a bit out. I didn't initially look there since it didn't appear that those screws had ever been touched..what do they say about the word 'assume'???

    Well I check and reset the hall timing..it was off 3-4'. This seems to have it..a bit of a run perhaps this weekend to confirm!!

    Thanks again guys, alot of great ideas!!


    Still might like to get rid of the performance exhaust..anyone have an OEM they pulled from their 200x laying around??
    I am truly flattered. Being a married guy I don’t get to be right very often!!!.
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