I drain my float bowls at the end of each day. I Clean the carbs each day as well. After the weekend, I strip the carbs down, and do a full cleaning on them.

If your doing the cleaning on a street bike, you probably wont be doing them this level of cleaning, so you should strip the carbs apart when you do the cleaning on a street bike.

While you got the carbs out, check the reed valves to make sure they are all in place, not warn, or cracked. You can do this by just looking down the intake with a flash light. Check the corners really well.

Thanks,
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Charles Gallant