Ultima ZT1 issue
 

I have a Ultima Zt1 54” zero turn. About a year old. It’s bogging down. Does it with the blades on or off. Occasionally it starts running fine. Then it will go back to running poorly. It gets worse with more load (speed, up a hill, etc.).

So far I’ve replaced the PTO clutch, spark plugs, fuel filter, air filter, and oil. I put some gum out in the fuel. Fresh fuel in it.

I’m out of ideas. Any help is appreciated. TIA.

At only a year old shouldn't you get the dealer get involved?
But just for some ideas, you might watch this video....
https://www.youtube.com/watch?v=60ZzN85L-JI

I got it through tractor supply. I’ll give them a shout. I was hoping for an easy fix and didn’t want to do without a mower for however long that process will take.

AFAIK, TSC doesn't service - you'll have to go to a real dealer for that.

You’re correct. TSC doesn’t service. They said they could send it out to someone for me though. The shop they’d send it to is owned by my neighbor. So, looks like I’ll be going that route. Now I just have to pay someone to mow my yard until it’s fixed. Always something…