Gushing Carb Leak - Honda Goldwing Forums
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post #1 of 16 (permalink) Old 10-31-2017, 12:55 PM Thread Starter
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Gushing Carb Leak

Recently ‘inherited’ an ‘84 GL1200 Aspencade that has been sitting for at least 5-6yrs. Still in great condition, garage kept, and (seemingly) runs great.
The only problem so far is that it has a gushing fuel leak behind the right side carbs. This side sits further forward than the left, so, of course, I can’t see a darn thing to be able to pinpoint “where” and the “big manual” I bought is practically useless.
Any ideas, theories, and/or advice?


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post #2 of 16 (permalink) Old 10-31-2017, 01:52 PM
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Does it do it without the engine running with the ignition on?

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post #3 of 16 (permalink) Old 10-31-2017, 02:18 PM Thread Starter
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Yes, but not with engine off/key out, only when the fuel pump is doing its job.


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post #4 of 16 (permalink) Old 10-31-2017, 02:19 PM
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I would suspect a stuck float/needle valve, especially after sitting with fuel in it.
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post #5 of 16 (permalink) Old 10-31-2017, 02:25 PM Thread Starter
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Just basically filling up and overflowing? I was hoping something like that but fearing something “less simple” LOL


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post #6 of 16 (permalink) Old 10-31-2017, 02:32 PM
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That's what I would suspect, but it could be a bad fuel line.

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post #7 of 16 (permalink) Old 10-31-2017, 03:54 PM
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I had that happen on my Vulcan some years ago. A simple tap with the handle of a screwdriver and fixed it. With the carb kind of hidden might be a tad tougher though.

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post #8 of 16 (permalink) Old 10-31-2017, 06:09 PM
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I see this all the time with older carb equipped bikes and also after a carb rebuild. There is some material lodged between the needle and seat on one or more carbs. This is always the first thing I do in this situation. fire up your air compressor, disconnect the fuel line at the petcock and push some air into the line. I normally set the pressure to 40 psi. Gas will flood out so be prepared. Most of the time this blows the seat clear and the problem goes away. It could take a few tries however. If this does not work then you will have to pull the carb bank and do a full cleaning.

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post #9 of 16 (permalink) Old 10-31-2017, 09:23 PM Thread Starter
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Quote:
Originally Posted by ETC View Post
I see this all the time with older carb equipped bikes and also after a carb rebuild. There is some material lodged between the needle and seat on one or more carbs. This is always the first thing I do in this situation. fire up your air compressor, disconnect the fuel line at the petcock and push some air into the line. I normally set the pressure to 40 psi. Gas will flood out so be prepared. Most of the time this blows the seat clear and the problem goes away. It could take a few tries however. If this does not work then you will have to pull the carb bank and do a full cleaning.


Wow! Thanks for this tip/hack - if I can avoid yanking the carbs, everybody wins!


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post #10 of 16 (permalink) Old 11-01-2017, 07:23 AM
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If you're able to get the leak under control without pulling the carb bank, you might try some Sea Foam in the fuel. That will help clean the insides of the carb. Always a good idea to keep things tiddy

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