Bing float question

[Steve Minor]

Should a properly operating float allow gas to flow into the carb if the petcocks are left in the on position over night? I awoke to the smell of premix this morning coming from the garage. Shouldn't the float have stopped the flow?

 

[Rocket]

Steve
In a perfect world the float needle is supposed to stop the flow of gas but it always doesn't work like that.  Turn the gas off when you are done riding and it will save a lot of headaches.
Rocket

 

[Dennis D]

Check an see if it filled your motor up with fuel before you try to start it! Dennis D

 

[Steve Minor]

Thanks Rocket... I assure you it was accidental and I could swear I shut the petcocks off. Anyway, my past entries tell of the carb problems I'm having and I hoped the leaking might indicate that the float is bad (or not closing properly). I'll start there and try to solve my problems this week.

Thanks
Steve

 

[Steve Minor]

Dennis.....Yeah, I thought about that too. I'll check it before I go too far.

Thanks
Steve

 

[Blue_Dog]

Steve:

You are going to have to stop using your lighter in the garage as a flashlight until you get to the bottom of this problem.

Your friend,

B_D

 

[Steve Minor]

OK....here's what I did when I got home. I removed the carb....again folks, it's a Bing 54 from a low hours 1977 400 GS6. It came new with a 320 needle jet installed, and the needle in the #2 position. It loads up something awful. I removed the cables and the top. I placed it upside down on my bench and the float seems level. I stuck a section of fuel line on and blew. The float was closed tightly....in fact, I couldn't blow through it at all, but I could manually raise the float slightly and blow air through it. There was no gas inside the floats. Next I plan on taking all the jets out....cleaning everything and putting it back together. Maybe this will help with the loading up problem....

Any other ideas a always welcome.  

Thanks
Steve

 

[john durrill]

Steve. Try this
Put the carb back together and let the float bowl fill. then drain it and remove the float. dry it off with a rag.
 lay the float on a table top that has a high gloss. see if you get a wet spot or a damp spot where it touches the table.
 the old floats can "water log" sometimes. they dont like some of the new gas we have at some locations in the country.
 it would be good to get a new needle jet, float and float needle from Bing if you can swing it
 make sure you have a fuel filter between the tank and the carb ,this is a biggie!. make sure the choke is all the way up when the lever is turned counter clockwise to the stop ( thats the off position on the slide type choke). we even use a innertube rubber band to keep it locked up when not in use.
 Def. get a new needle jet. they wear fast and can give you fits.
 Last try taking the air filter out for a quick test and see if it runs right then. If you have a high breather, either the filter could have way to much oil or be restrictive, or something could be in the frame between the air intake and the air box.
 Did you burn out the pipe when you have the bike down ?
 Sometimes mice and other critters can leave you a present inside chuckle chuckle"!
 hope this was some help Steve.
John & Peter

 

[Steve Minor]

Thanks again John....I'll try all your suggestions and post my results....

Steve