99 custom carb problems?

[sdwolff98]

Hey guys n gals,
Here is deal had bike carbs cleaned out 3-4 months ago. In the time since the carb mixture screws backed out once. Now it seems like they are doing so again... Called the shop going to drop it off with them again this afternoon..... This is frustrating these are the only problems I have had with this bike in 4 years ownership..... Bike idles just fine but when accelerating it sputters and attempts to die.
Any advice would be helpful other than my plans to return it to the shop?
Thanks
Sean

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