2022 LT46 Cub Cadet Stalling problems
 

Hello Cubs Only forum members. I am a newbie, and this is my first post. I purchased a used (2022 mfg date) LT46 lawn tractor/mower private sale. The
battery was dead (weird) so I purchased a new Interstate Battery 330 cca. It starts well with the new battery. Oh, and I had to sharpen the blades, they were pretty bad. So that's the backstory.

Now I get to mowing with it and with the blades engaged (manual PTO) it stalls frequently. It seemed at first like it happened on uneven ground however I cannot say it is always the case. It starts right back up, but often stalls again when I engage the PTO. So....I must have restarted it 20 or 30 times to mow 3/4 acre. I don't want to keep it up, as it's a pain in back plus not good for the machine. It has the 7000 series Kohler 23 hp twin with the variable speed transmission operated by the right foot pedal (forward/ backwards). Note: without the blades engaged you can run it all over the place and not stall it. I am not a mechanic, and my dear wife thinks I should have bought a new one. Any advice will be appreciated. Oh, I did think about gas, but I have run most of the original gas out. It's diluted with fresh, but didn't solve the issue.
Best, Chauncey the Gardner (aka Dana)

Something you might be able to try is unplugging the battery when you start the mower. It sounds kinda stupid, but it is a fix I had to apply with my garden tractor. my mower would stall out because the alternator would overload the motor. So as a blanket fix, I'd try that. No promises and this wont exactly fix it in the long run.

You have a twin cylinder engine and I wonder if only one cylinder is working. Sounds like when it has load it stalls out. Try starting it and pull spark plug wire off the plug (one at a time) and see if the engine sound changes or dies. It should run on one cylinder.

If it is stalling immediately upon engaging the PTO. It might make
one suspicious of a safety as well as the other things mentioned.
It might be thinking you are not in the seat when the PTO engages.
That will kill it. Might have a wire to safeties grounding out somewhere
or a safety switch failing..

Ken

Sounds like it could be starving for fuel under load. Time for a fuel system cleaning. I would start at the Carb.

I will try it next time I get it out of the garage. It's raining like stink here right now.
Thank you for the idea.

I can try that, however without the PTO engaged it is running OK. As a matter of course, and because of the troubles I will check the plugs. Funny thing is that it mows with power and vigor...until it cuts completely out.

This is how it is acting. At one point I thought I was bouncing on the seat, however on level, smoother land it would also cut out. This is what I will chase first, because it only kills the blades (PTO) like you say, "as a safety feature" so I will try to find the wires responsible for safety switches. Any idea where to start?

You will need to look at wiring diagram for the machine. I believe it is on
the site here. I would just attach it here but I sure have a hard time
doing things like that. Hopefully one of the technologically advanced folks
here can tell you where it is. :beerchug:
I would start by checking continuity of the wiring involved in the safety
switches. Then begin checking the switches themselves. Especially the
PTO and the seat switches.
Do you have a multi meter you can use to get started?

Ken

On second thought you may not find that diagram on the site here
I would think if a dug around on the world wide web it should be around.

Ken