Cub Cadet with Kohler 18 HP KS540 Starting Issue

[KRS-MED]

I’m at the end of my rope with this mower it will only start if I manually hold accelerator linkage on carburetor to idle position. After it starts it runs well. If I don’t hold it in the idle position it want start linkage seems to be correct but any help or advise would be appreciated. It’s a 2018 Cub Cadet XT1 42” with a Kohler 18HP KS 540 engine.

 

[ILENGINE]

If this has the single throttle/choke control cable system the clamp at the engine end that holds the cable could of slipped and not completely closing the choke. Post the spec number so we can narrow down what carb control configuration. Some had manual choke some had auto choke and some have electronic choke.