New to this forum and I need some help. Working on my wife's 1981 Honda NX50M Express-SR, I rebuilt the carb new float, needle and gaskets. Got it running and she rode all over said it runs great once it warmed up, but when I parked it and came out the next morning it is leaking gas out of the exhaust. Another thing to note is that the throttle has to be held wide open to get it to start, once it is warmed up it runs perfect.

Any help would be greatly appreciated, thanks in advance.

 

The float is sticking.

 

yes, it's sticking or not adjusted right. does it have a petcock? some of them are vacuum operated so only lets gas out when there is a vacuum so it may not be working