Kohler Commnd 22 hp V-twin Cuts Out

[jaotguy]

being a twin , only 1 coil would go bad , and still run on the other without quitting ....

remove the line from the pump going back to the tank ... run compressed air back to the tank ( blow out any junk that may clog the line )

note : some units have an in tank fuel filter before the on/ off valve ... there are fine screens that can get clogged easily . some are inside the line right as the hose connects to the tank nipple.

so the gas slowly filters thru the sludge and fills the carb bowl ( when the unit is off ) , then the engine starts and runs on the fuel in the bowl , then starves as the level drops after a minute or two.

 

[GTSRider]

This problem is driving me crazy ! Today was the last day of use , as the 3 acre yard is finally clean for the season.... luckily, it was 61 today in the Hudson Valley NY.
What's nuts is that it will run from 2-4 minutes before she cuts out.... but can run on a given day, as long as over an hour ! ? I still suspect gas starvation, because after it cuts out... using the choke after waiting a few minutes, will help restart it, where it will run for another 2-4 minutes. I can see dirt/sludge in the bottom of the tank, but what I don't understand is why it will sometimes run for over an hr. ? My plan is to remove plastic blatter tank ( 3000 series ) and clean out with soap and water. How difficult is it to remove these tanks ?

 

[Hill Billy Bob]

Looks like you'll have to remove seat and fender assembly to get to it. I do this yearly to my 1000 series, to change the transmission oil......1st time took me a while, after a few times ya get it down pat.

Fender removal taken from service manual for the 3000 series. You can download entire manual at mymowerparts.com

View attachment Cub-Cadet-3000-Series-Service-Repair-Manual.pdf

 

[Wild Bill the 2nd]

If it does not have one, I would change out the fuel filter up by the engine with a see-through one. Something like this, you can get them anywhere.
That way you would definitely be able to see if your theory is correct.

 

[turbo36]

This problem is driving me crazy ! Today was the last day of use , as the 3 acre yard is finally clean for the season.... luckily, it was 61 today in the Hudson Valley NY.
What's nuts is that it will run from 2-4 minutes before she cuts out.... but can run on a given day, as long as over an hour ! ? I still suspect gas starvation, because after it cuts out... using the choke after waiting a few minutes, will help restart it, where it will run for another 2-4 minutes. I can see dirt/sludge in the bottom of the tank, but what I don't understand is why it will sometimes run for over an hr. ? My plan is to remove plastic blatter tank ( 3000 series ) and clean out with soap and water. How difficult is it to remove these tanks ?

Had a similar problem with a John Deere Sabre unit; ended up being a clogged vent in the fuel cap. Loosen the cap and see if it will run longer.

 

[Hill Billy Bob]

Before I pulled the tank, I would pull the fuel line at the filter, place it in a container on the ground or garage floor, and see if it flows steady. If not, loosen the cap and see if that helps.

Might also check the vac line that operates the pump. At 1200 hours, I gotta believe it's hardened pretty good, maybe cracked and leaking.