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Banshee stumbling after idle

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Old Jan 17, 2004 | 11:37 PM
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MX660R's Avatar
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Default Banshee stumbling after idle

Finally got her back up and running, just not perfect. It will sit there and idle great, put her in gear and go to take off and it bogs, if I run it with the choke on its perfect, so what do I need to richen, it has stock 25 pilots and 200 mains. Stock pipes and filter.
On a side note if you give it a little extra revs, and get going its fine until you have to bring the revs back down and sometimes if you are coming down from decent speed (25-30mph) it pops every now and then, not a back fire, but more like a popping sound.
 
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Old Jan 18, 2004 | 12:07 AM
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Default Banshee stumbling after idle

Check syncronization on the carbs. If the bike is stock the stock jetting should be fine. You may also try raising the needles by dropping the clip position.
 
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Old Jan 18, 2004 | 12:31 AM
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Default Banshee stumbling after idle

Carbs are in sync, both marks appear at the exact same time and stop together through the carb windows, idle and air fuel adjustments are exact on. It idles great, and runs great after the stumble. any other suggestions?
 
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Old Jan 18, 2004 | 01:55 AM
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Default Banshee stumbling after idle

Your running definetly lean on the first quarter of your throttle. The reason I know this is becuase when you pull the choke out its dumping more fuel to the air mixture. If its stock turn the ***** on top of the tors 2 complete turns out from seated and then adjust our air screws on the right side of your carbs out one and one half turns out from seated. That will give you a good starting point and adjust it from there. Ride it and if it runs better but not like you want it to turn the ***** on the tors again half a turn out, adjust them to about 3 turns out, if its still not right them turn em back to 2 turns out and adjust your air screw again half turm more out. I know it sounds complicated but it not. The air screws are brass the right one is pretty visible but the left carbs is harder to see but its there. Hope this helps, got any questions message me.
 
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