140 weird power loss

OK. Starts fine. Generally runs great. Lots of power. Problem is
intermmitant. Been plowing snow and every now and again it
seems to be running out of fuel. I've changed the filter, drained the
glass filter, ignition is fine. It just kinda powers out. After it stalls it
starts right up but has no power. If you let it sit sometimes it goes
fine sometimes not. My thoughts are maybe the carb or can the
governor cause this problem. Help.

sounds like a fuel blockage. I would look in the fuel tank. Had one that did this and it had a bug in the tank that would stop the fuel from getting out. cleaned the tank and have no more problems

Ian: You say filter, what filter, 140 does not have a fuel filter, only a screen in the sediment bowl. If you've got an inline filter on there, here's betting that is your problem

If it has an in line filter on it THROW it as far away from the tractor as you can and I'll bet your problem goes bye bye. My normal charge to fix the in line filter problem is a case of beer and I'm up to over 20 cases so far
Hobby farm

Thanks so far. I had already eliminated the inline filter , cleaned out the bowl and the screen in the carb. I just tried it again and it ran for maybe 15minutes and then started to power out. It will make it back to the shop just idling.

You are at 26 now, several readers need to ship you their "fee" Jim

check the butterflys to see if one is lose or the shaft is broken where it hookes on. Mine did that but it ran fine till it warmed up then would choke out. The upper butterfly shaft broke where the linkage hooks on.

The fuel is not getting to the carb at a rate fast enough to run well. There is a screen at the carb fitting. Also remove the sediment bowl and put a pan under the opening. open the valve. It should come out in a pencil size stream. Let it do so for 30 seconds or so. If it trickles, the tank outlet on the sediment bowl fitting is plugged up. JimN

LOL sure wish they would but you know how that goes. Haven't had a beer in more then a week which is bad but its either beer or christmas

You can do as Janicholson say and or take the line off the carb and blow in to it. You should be able to blow air back into the tank easy with your mounth. If you can't then you have a clogged up sediment bowl in let. BTDT many times

The vent hole in the fuel tank cap might be plugged or partially plugged. See if removing the cap makes a difference.

Ian: I see you eliminated the inline filter, and problem still exists. Over the years I've had this same problem a few times and it usually turns out being the stem from tank to sedimemt bowl. What happens, if these tractors sit very long not full of gas, one gets a rust build up on inside portion of tank exposed to air. When you start using tractor the gas washes the rust off and into the sediment bowl stem. Long term you should remove tank, have it steamed and coated inside. Most radiator shops are equipped to do this.

Short term here is my solution, remove gas line, remove gas cap, then apply compressed air to sediment bowl outlet. This blows the crud out of stem and back to tank. This hit my SA this summer, I might have expected it as it's close to 20 years since tank was steamed, and last winter tank was empty 3 months as I restored and painted the tractor. I should have taken the time then to have tank done, however grass mowing was upon me by the time I got the tractor back together. During the summer I got about 10 hours each time I applied the air. I've noticed this before, one gets decent milage from air treatment. Only takes 10 min.

Thanks for all the help. Problem was inside the sediment bowl assembly. There was a piece of crud right inside the fuel passage. Blew it out a yahoo it runs great!

Merry Christmas!

Ian

I'm Glad we could help. JimN