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1978 Honda CB400A Hawk Hondamatic
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My 1978 CB400A was leaking gas from the bowl drain. I discovered the bowl overflow pipe was split length wise. I slipped fuel line from a small motor (weed eater) over the pipe sealing off the split with gas resistant tubing. Way easier than soldering or brazing. Attached pictures tell the story. I wish it was my idea, but a neighbor who is a machinist devised this work around. The splitting is a common problem I hear. I hope this solution helps someone.
 

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At some point the crack will continue and even extend into the actual float bowl material. Keep an eye on it.
 

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My 1978 CB400A was leaking gas from the bowl drain. I discovered the bowl overflow pipe was split length wise. I slipped fuel line from a small motor (weed eater) over the pipe sealing off the split with gas resistant tubing. Way easier than soldering or brazing. Attached pictures tell the story. I wish it was my idea, but a neighbor who is a machinist devised this work around. The splitting is a common problem I hear. I hope this solution helps someone.
That is such a great idea.
 

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Good quick fix, before you replace the carb. I say replace because I would never trust a solder on an old metal that has cracked and gone through the process of heating and reheating. Praying you can eventually find a less used one or some other solution for the long haul.
 
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