kohler turf tiger power loss

[Ecolandscaping17]

hey guys. losing power after a few minutes if mowing. stop and wait, runs good for a few minutes then bigs back down. changed injectors, coils, clutch, good compression, battery good. can't figure it out. any ideas. thank you

 

[MParr]

You mentioned changing the injectors. I assume that this is an EFI engine.
You didn't mention changing the fuel filter. You need a 10 micron Kohler fuel filter. If changing the fuel filter doesn't work, you will need to someone with a diagnostic tool to pull the codes.