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Old 06-25-2018, 12:43 PM
idruthrbfishin idruthrbfishin is offline
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Default 1811 fuel issues
Hello all, 1811 keeps acting like it's running out of gas. Pulled tank off & cleaned it. Not much in it, but cleaned it anyway. Checked and cleaned carb float is good. Cleaned screen at bottom of tank, replaced fuel lines. Old fuel pump seemed like it wasn't pumping nearly enough, so I replaced it. Still having same problem, tractor runs for 30 seconds, then stalls. Thinking problem still lies in the carb. Thoughts?
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Old 06-25-2018, 01:19 PM
J-Mech J-Mech is offline
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Why do you think it is running out of fuel?

Did you do all the work you listed at the same time? If not, unless the carb was the last thing you disassembled, take the carb off and clean it again.
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Old 06-25-2018, 02:02 PM
idruthrbfishin idruthrbfishin is offline
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Originally Posted by J-Mech View Post
Why do you think it is running out of fuel?

Did you do all the work you listed at the same time? If not, unless the carb was the last thing you disassembled, take the carb off and clean it again.
Starts, runs for 30 seconds, then starts spitting/sputtering, then dies exactly the way it would if the tank was running empty. Closing the choke once it starts to stall will keep it running a few seconds longer. Let it sit for 2 minutes, then it will start again and repeat the above process. That leads me to believe it is starving for fuel. Maybe I am missing something? Tonight I will try cleaning the carb again.
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Old 06-26-2018, 10:08 AM
idruthrbfishin idruthrbfishin is offline
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Can I swap out the non adjustable Walbro carb with a Carter from a K-series Kohler? Would it be a direct swap?
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Old 06-26-2018, 12:09 PM
J-Mech J-Mech is offline
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Can I swap out the non adjustable Walbro carb with a Carter from a K-series Kohler? Would it be a direct swap?
You can. A #27 (I think that's the right number) is the same carb. It is not a direct swap. You have to swap throttle and choke shafts. Maybe just one of them..... I don't remember. But you have to change at least one of the shafts.
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Old 06-27-2018, 09:33 AM
idruthrbfishin idruthrbfishin is offline
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Thanks J-Mech I will look into that.
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Old 06-27-2018, 11:24 AM
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ol'George ol'George is online now
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The inlet fitting, sometimes an elbow, can get plugged up with a debris
or the end of the needle seat.
Did you remove the needle seat and blow through the carb inlet barb both ways as well as checking the needle seat for obstructions ?
Did you crank the engine over while checking if fuel spurted out of the inlet hose where it attaches to the carb? it should be a steady pulse of spurts as the engine is cranked.
Do take caution as fuel squirting is dangerous and a catch can of some sorts is needed.
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Old 06-27-2018, 11:34 AM
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As an afterthought if it is a walbro carb they get fuel into the venturi well through a hole in the side of boss where the nut holds the bowl on.
so with the carb bowl off did you check to see if that passage is plugged? it is almost at the bottom of bowl,if it is plugged the fuel in the bowl will not be able to get out of the bowl into the jet well (hard to explain) hope you understand.

On the adjustable carter off a k series, IIRR like Jon sez I believe the choke is where the linkage is different.
one cable pulls from the front and the other pulls from the back of the tractor.
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Old 06-28-2018, 09:38 AM
idruthrbfishin idruthrbfishin is offline
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It is the Walbro with only 1 adjustment screw. I did blow up through all of those holes with my air hose when I initally started having problems. Maybe spraying it with carb cleaner and repeating the process couldn't hurt. I'm not one to give up on something too easily. Why re-invent the wheel, ykwim? My neighbor has a 1711- should be the same carb, right? If I stick that carb on and my problem goes away, then I know MY carb just needs a good cleaning.
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Old 06-28-2018, 09:49 AM
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It is the Walbro with only 1 adjustment screw. I did blow up through all of those holes with my air hose when I initally started having problems. Maybe spraying it with carb cleaner and repeating the process couldn't hurt. I'm not one to give up on something too easily. Why re-invent the wheel, ykwim? My neighbor has a 1711- should be the same carb, right? If I stick that carb on and my problem goes away, then I know MY carb just needs a good cleaning.
Take the carb off and look for something blocking the inlet of fuel and other things I mentioned in post 7 & 8 your prolly right, it is running out of fuel.
Does it have the electric fuel solenoid? some of the M-18's have them.
----something else to check.
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