I have a 2019 John Deere z945m EFI with 200 hrs. After start up, if I try to go full throttle it doesn’t go to full rpm. I have to power back then slowly go forward until full rpm is reached. It just seems like it’s not getting enough fuel. Once it reaches full rpm I can mow with no issues. Problem is worst if I engages the blade. But with blades engaged I can pull back on throttle and slowly go forward and it will reach full rpm
