ANOTHER Carb leak question

[2nafist]

Hello,
New to the forum...
Have searched and tried the remedies, still leaking.
Have narrowed down my overflow leak to a cracked overflow drain tube.  Have tried soldering (my soldering skills aren't the best) and fuel is still finding a way out.  Not sure if its the vibrating of the engine or some other pressure that is breaking the solder seal, but it keeps breaking through.  The crack goes about 2/3 of the way down the tube, not all the way to the top and not all the way to the bottom.  I have searched ebay, online parts stores, and Honda dealerships.  To replace the float bowl is almost impossible from what I've found.  Discontinued part etc.  I would prefer to not buy an entire carb for $180+-.  Any links to part retailers that I don't know about?  Part # is 16015-425-871.  Is there a better way to solder that I don't know about?  Any other ideas of how to get past this issue?
Any help is much appreciated.  
Thanks

[icerigger]

Try JB Weld. It stay flexible and will resist vibration and fuel. It worked for me. YMMV.

[Lucky 1]

You can make your own overflow tube.
Every hobby shop has brass tubing.
Just remove the old tube and drill out as necessary.

Make sure to round the top the same as the other stock overflow tubes.

Or you could get another float bowl.
But please do not throw away that float bowl.
Many owners may need that discontinued part.

The tube does not have to be brass. It can be aluminum.

[2nafist]

What's your best place to buy that? I can't find the discontinued bowl anywhere...

[2nafist]

And how are the tubes attached to the float bowl anyways?

[Hoosier Daddy]

Maybe this will help. Compliments of www.hondapartsnation.com

Parts Search Results

Assemblies where 16015-425-871 is used

1978 CB400A A - CARBURETOR
1978 CX500 A - CARBURETOR
1979 CB750L A - CARB. COMPONENT PARTS
1979 CX500 A - CARBURETOR
1979 CX500C A - CARBURETOR
1979 CX500D A - CARBURETOR
1980 CB400T A - CARBURETOR
1981 CB400T A - CARBURETOR
1981 GL500 A - CARBURETOR
1981 GL500I A - CARBURETOR
1982 CB450SC A - CARBURETOR
1982 CB750SC A - CARBURETOR (COMPONENT PARTS)
1982 CM250C A - CARBURETOR
1982 CM450A A - CARBURETOR
1982 CM450C A - CARBURETOR
1982 CM450E A - CARBURETOR
1982 GL500 A - CARBURETOR
1982 GL500I A - CARBURETOR
1983 CB1100F A - CARBURETOR COMP. PARTS
1983 CB450SC A - CARBURETOR
1983 CB750SC A - CARBURETOR (COMPONENT PARTS)
1983 CM450A A - CARBURETOR
1983 CM450E A - CARBURETOR
1985 CB450SC A - CARBURETOR
1986 CB450SC A - CARBURETOR

[2nafist]

Can't even add that part to shopping cart Hoosier

[alehman]

I had the same issue on I think all my drain tubes and I have so far solved it with JB weld. When you apply it, make sure you let it cure because the first time I did it, I rushed and reinstalled the bowls too soon. The JB weld came right off. The second time i put the bowls with JB weld in the oven at around 170 degrees for about a half hour. The heat helps the JB weld cure faster and it also makes it more fluid, which maybe helped it fill in the cracks better.

[2nafist]

Just JB welded, thanks for the input, I will check back.  Now on to tracking down why the battery won't charge.