k-181 stalling out

[B.Peters 1]

I have a 1974 B-80 with a k-181. I'm having problems with it stalling out after it runs awhile like a 1/2 hour or so. It will just quit like the switch is turned off. But it will run crappy if I choke it then if I take the choke off it will quit. If I let it sit 15 mins or so it will run for a little bit and do the same thing again. Is my fuel pump getting weak or is it electrical. I took the line of the pump and it is pumping just don't know if its pumping enough. Could it be points? Any help would be appreciated.

[rmaynard 14,851]

Take the cap off of the gas tank and see if it keeps running. If it does, you may have a blocked vent in the cap.

[B.Peters 1]

I tried that already. Thank you anyway. I just don't know how a fuel pump acts before it goes completely out.

[slammer302 2,154]

I would check the float on the carb I've have the same problem every once in a while tap on the bottom of the carb with the plastic handle of a screwdriver and it will start running good again

[skrusins 128]

I have a B80 with the same problem for a couple years. Finally I installed an electric fuel pump

with a off and on switch. Have'nt had any problem all year. I talk to some guys at a rental store

and said there installing them on all there equipment. Hope tis helps.

[B.Peters 1]

I wonder if this new ethanol gas has anything to do with this. That new gas is junk in my opinion.

[JustinW.73 224]

I wonder if this new ethanol gas has anything to do with this. That new gas is junk in my opinion.

Thats a big fat yes. People have made tests on the new type of gas with ethanol and it is terrible for small engines. Especially the carb and gaskets. 

[WH nut 553]

Replace the condensor