Briggs carb problem

[Machine1964]

I don't know a lot about briggs and stratton engines,but I have a drag car and motorcycle that I've built and maintain myself.I bought this carb on ebay for my son's go kart and I cannot get it to idle.As long as I rev the engine it will stay running.This picture is from ebay and does not look exactly the same.My question has to do with the fuel tubes that come out of the bottom of the carb.Mine only has the long one and I could use an explanation as to what they are for and/or a diagram that would explain it to me.Thanks in advance.

 

[honda02]

I'm new to these as well, but from what I understand... The carb uses the engine pulse, diaphragm style to pump fuel from the long tube at the bottom of the tank. It goes into a resevior under the shorter tube, which contains the main jet. The short tube on mine is metal. Are you sure you dont have one?

 

[Machine1964]

I guess i should have been more clear.The carb didn't come with the short one but I made one.

 

[1992suburban]

here is a GREAT LINK http://karting.4cycle.com/showthread.php?t=274610&highlight=briggs+tank+carb


and one link from that link scroll down tillyou see the CARB you have and look at demo http://www.bcot1.com/karting/

 

[hd4ou]

http://outdoorpowerinfo.com/repairs/briggs_pulsa-jet_horiz_fixed.asp

its probably this one.

 

[Machine1964]

Thanks suburban, that link to the basics of go kart mechanics is just what I needed.