Your needle valve must be a smooth surface where it seats as well as a nice smooth surface in the carb housing where the needle valve seats down. The biggest problem with these carbs is the WRONG float setting. DO NOT use the setting provided in the carb kits. those settings are way wrong and will cause flooding and running problems like crazy. The correct setting is right in the fuel bowl and is a machined groove that goes all the way around the inside of the fuel bowl. Set the float to that line and it should run great if the suction tube is in good shape. The mixture adjustment is the knurled knob on the top and must have the little spring to keep it in place or it will vibrate and change the setting. The copper tube is nothing more than a fuel bowl vent and if it is leaking fuel into the air intake, the float is set wrong, or the needle and seat are not clean or making a good seal due to wear.
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Today's Featured Article - The Day Mom Drove the 8N - by Brian Browning. My Dad was wanting to put in a garden but couldn't operate the 8N and handle the old horse drawn plow he had found and rigged up to use with the tractor. Well, he decided to go get Mom out of the house and have her drive the tractor while he walked behind the plow. You got to understand that while my Mom is a hard worker who will always help whenever she can... she had never operated farm machinery before that day. Dad got her out there, explained how the clutch was the same as in our o
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