Here is what I gather:
The breather hose was not connected to the RC racing carbs.
The stockers sat unused for an extended period of time
you have not tried to start the bike with the breather hose disconnected. (it ran after you had connected the fuel line correctly and connected the wayward hose. The bike fired up and ran out of fuel, while the fuel and breather hose were connected.) The bike never really ran for any extended period of time with the stockers on.
Just tying to brain storm this tis all.
Having replace the RC racing carbs, and replacing them with the stockers, a question arises as to how long the stockers sat on the shelf? Perhaps the float needles are gummy? Once you have ascertained spark and full flow, then I would suspect a can of carb cleaner and some compressed air may be in order, i.e., clean the carbs. at the very outside, the floats may be full of gas. The carbs idle circuits which are drilled passages are great gunk collectors.
yup. Pull em. in the immortal words of our fearless leader dinqua, "...Once you have done this a couple times, it gets easier. I can pull my carbs in about 15 minutes now, that includes the tank and all the extras as well..."
Quote:
The bike didn't start with nothing connected to the overflow, and it doesn't start with that hose connected.
yes it did start once you had corrected the fuel dumping on the floor issue. you said what's up and got the info to correct it. At the time of correction you connected up that hose that was all by it's lownsome. thus the idea that the breather hose might be the culprit. Have you disconnected the "hose that I found on the bike that wasn't connected to anything at either end" and tried to start the motorsickle?
In summary four items given fuel flow to the bowls and hot plugs:
Breather hose
Varnished carbs
sticky float needles
incorrect float height adjustment.
