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Way too much fuel in one or more float bowls I would say. The float bowls are meant to maintain a relatively fixed level of fuel inside them, they operate pretty much the same as a toilet tank and your toilet is over-flowing.
Things to watch for: Carburetor floats on some bikes can be accidentally installed upside-down. If all of your carbs are exhibiting the same symptom, this is possible. I once owned a 1972 CB350/4, but it was too long ago to remember if putting the floats in upside-down was a possibility on that bike, sorry about that. You are going to need to take them apart again and look.
Next possibility is that the needle and seat that the floats are attached to are installed wrong or leaking … you still need to take them apart again to know that.
Least likely possibility, your floats are sinking, have holes in them and leaking fuel into them or somehow water-logged.
Yet another possibility, your carb rebuild "kit" is crap and not doing it's job of stopping the flow of fuel from the tank when the floats are trying to close the needle and seat stop valve.
She won't fire if the float bowls are over-filled, because the carbs can't produce a venturi effect and atomize the fuel mixture on it's way to the cylinders.
Nice bike, hope you get it going, they sound awesome at high revs. Yours seems to be missing a few more parts then mine did, like fenders.
Fenders are kind of important if you plan to ride it in the rain or on anything other than totally clean roads.
- There is fuel in the float bowls of the carbs"
Way too much fuel in one or more float bowls I would say. The float bowls are meant to maintain a relatively fixed level of fuel inside them, they operate pretty much the same as a toilet tank and your toilet is over-flowing.
Things to watch for: Carburetor floats on some bikes can be accidentally installed upside-down. If all of your carbs are exhibiting the same symptom, this is possible. I once owned a 1972 CB350/4, but it was too long ago to remember if putting the floats in upside-down was a possibility on that bike, sorry about that. You are going to need to take them apart again and look.
Next possibility is that the needle and seat that the floats are attached to are installed wrong or leaking … you still need to take them apart again to know that.
Least likely possibility, your floats are sinking, have holes in them and leaking fuel into them or somehow water-logged.
Yet another possibility, your carb rebuild "kit" is crap and not doing it's job of stopping the flow of fuel from the tank when the floats are trying to close the needle and seat stop valve.
She won't fire if the float bowls are over-filled, because the carbs can't produce a venturi effect and atomize the fuel mixture on it's way to the cylinders.
Nice bike, hope you get it going, they sound awesome at high revs. Yours seems to be missing a few more parts then mine did, like fenders.
Fenders are kind of important if you plan to ride it in the rain or on anything other than totally clean roads.