Runs very lean. Floats are set with the needle...

it sounds like it is still you needle and seats are worn or your float has a hole in it just check the float and see if it has fuel inside it ,but i say a new set of needle and seats and bowl gaskets cheers

Float valve seats have o ring seals on some carbs,
check those. Float level must be set correctly
or floats will hit the carb body before needle closes.
Floats must move easily up and down.
Carb body air vent passages must be clear.
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You need to check and see if the needle and seat are working properly. As fuel enters through the needle the float will rise and force the needle into the seat and stop the flow of fuel. A poor or worn out needle and seat or a damaged (leaking or fueel soaked) float could be the problem.

your float settings inside your carb are set wrong read my advice to resetting them and you should be ok
You'll need to first start off by removing your carb. Be sure to clean the surrounding area to the best of your ability to avoid dirt and debris falling into your carb; or worse, your engine. After you've removed your carb I would suggest a thorough cleaning using carb cleaner (or equivalent) and compressed air to ensure that all jets and passageways are spotless. Avoid using wire or other tools to clean orifices of jets; it's all too easy to alter their original designed dimensions.

After your carb is clean you can now set your float level. The picture below will allow you to become familiar with the parts that are responsible for maintaining the correct float level in your carb. There are four basic parts, the floats themselves (part of the float assembly), the float assembly tang, the fuel inlet needle valve, and the fuel inlet valve seat.


(Float assembly pivot pin not shown.)


It is always a good idea to remove the float assembly pivot pin (already shown removed) and extract the float assembly and the fuel inlet needle. The fuel inlet needle is a wearable part and over time can deteriorate. A worn fuel inlet needle can contribute to an irregular float level. Most fuel inlet needles consist of an internal spring loaded bumper (which contacts the float assembly tang) and a plastic or Viton (rubber) tip. Inspect the fuel inlet needle tip for wear and/or damage. To give you an idea, Eric Gorr recommends replacing the fuel inlet needle/seat assembly every two years. I've found that the average cost is around $15 for both parts.


(Fuel inlet needle shown with Viton (rubber) tip. The Viton is used to isolate the fuel inlet needle from vibration and to create a better seal against the fuel inlet valve seat.)

Now that you've made sure you aren't going to have any issues from worn parts you can reinstall your needle, float assembly and float assembly pivot pin and continue on to set your float level. The float level measurement is taken from the top of the floats (when the carb is positioned upside down) to the gasket surface of the float bowl as illustrated in the next picture. You can use an open-end wrench (sized per your spec), a small metric ruler, or a float level gauge. The tolerance for your float level is usually around +/- 0.50mm.




When setting the float level be aware that the spring loaded bumper on the fuel inlet needle valve may have a tendency to compress under the weight of the float assembly which will skew your measurement. Before you obtain your measurement you'll need to make sure that the float assembly tang just barely makes contact with the spring-loaded bumper. Sometimes it is easier to hold the carb body at a 45-degree angle to avoid compressing the spring in the fuel inlet needle.




If you find that your measurement does not match your float level spec then you can carefully bend the float assembly tang to achieve your desired measurement. Be sure to recheck your work, and if you feel confident that your float level is spot on then you can reinstall your carb and get back to riding.

the floats in the bottom of the carb need adjusting the are to low




When setting the float level be aware that the spring loaded bumper on the fuel inlet needle valve may have a tendency to compress under the weight of the float assembly which will skew your measurement. Before you obtain your measurement you'll need to make sure that the float assembly tang just barely makes contact with the spring-loaded bumper. Sometimes it is easier to hold the carb body at a 45-degree angle to avoid compressing the spring in the fuel inlet needle.




If you find that your measurement does not match your float level spec then you can carefully bend the float assembly tang to achieve your desired measurement. Be sure to recheck your work, and if you feel confident that your float level is spot on then you can reinstall your carb and get back to riding.

Goldwing's have never been great for fuel economy. You do not mention what your fuel economy is. Plug color is an indicator of how rich or lean a machine is running. Goldwing's will typically range from 30-45 MPG. If it worse you need to look at a tune up. Plugs, fuel filter, air filter, fuel system cleaner, check timing, and dirty oil can affect fuel economy. Your carburetors have metal vacuum slides that require yearly cleaning. That effects throttle response and smooth running. Your manifold has Two halves to it There is a special shape rubber o-ring that seals the two halves. If your o-ring is bad it could cause gas to flood the intake manifold bypassing the carburetors. If some one has rebuilt the carburetors and put carburetors from different years (mismatched) or did not make sure that the jet and needle sizes match that could be the cause of your issues. The carburetors are stamped with an ID number check to be sure they are a matched set. Also the float needles could be worn or leaking and you could be dealing with sunk floats. Remove the carburetors take off the bowls and inspect the needles. Put the floats in gasoline to see if they sink or float, If they sink replace them ethanol is hard on black plastic floats. Make sure your float height is correct, If the float height is incorrect you will run rich and waste fuel.

Not a professional, but I have came across this before!! Carbs can be a pain! I would guess that the floats need to be adjusted! You may even need new floats! What happens is the floats raise up as fuel enters them, and they push up against a needle, which tells the floats no more fuel......if the floats or are not adjusted properly, or the needles are bad.....flooding will occur! may be something else?? Just a guess! Carbs are not cheap, so if you bring it to a pro, tell them you want the floats adjusted properly! Much cheaper than a complete rebuild! rebuilding yourself is a lot of work so yeah.....start with the floats!

The floats dont often change their setting, so are usually left alone. The float needle has a neoprene tip, that isnt going to wear into the seat, and a spring tip on the other end, so they dont change.

Usually if the bike floods, the carb needs cleaning, occasionally you need to buy a new needle and seat.
The floats and needle cannot wear and create a lean mixture.
Sorry if I didnt answer the question "how to set the float"

Check for a steady supply of fuel to the carb. Could be a blocked or pinched fuel line. Very possible that the float needle and seat are worn, causing the valve to remain closed or partially closed. When this happens the fuel bowl runs out of fuel causing the engine to die. Then fuel trickles back in while sitting and slowly fills the bowl again, allowing the engine to restart. Also be sure that the float level is set properly and that the float pivots freely. Most small engine carb floats are set to shut off the fuel when the float rises in the bowl to where the flat surface on the float is parallel to the bowl mounting surface. If the float is set close to this, don't try to adjust it. If your float needle has viton (rubber like) tip, be sure that it is not deformed. Never press on the needle because it will deform the tip, causing the valve to stick open or closed. Many times you can buy just the float needle and seat either OEM or aftermarket.

remove fuel line from petcock and see if fuel runs out, if not remove petcock from tank and clean filter screen, if it does come out, check for inline fuel filter change it, if it dont have one check fuel pump if it has one, or could be diaphrams in carb split and not building vaccuum to draw gas thru