I just got this broke down John Deere 245 with the 14 hp Kawasaki. Everything works but one major problem it doesn't move. When I move the transmission to forward or reverse I have no movement. I have not tried anything yet, any help will be great.

Question edited for clarity.
Question moved from Food Mixers.

Videos that may help.

https://www.google.com/search?q=2008+John+Deere+HPX%2C+Kawasaki+motor+Carb+adjustments

Service Manual

https://www.google.com/search?q=2008+John+Deere+HPX+service+manual

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Question edited for clarity, full 'make model (what it is)'.
Question moved to Category.

It sounds like you are missing the throttle return springs that returns the throttle actuator back to closed. The draft of the engine will open the butterfly valve.

https://www.weingartz.com//assembly-diagram/john-deere-parts-lookup/model-z425-eztrak-mower-w-54inch-deck-pc9594-choke-throttle-speed-control-linkage-100000-fuel-and-air/4275-941-492791

https://www.google.com/search?q=john+deere+z425+carburetor+replacement

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I can find it but it seems to be a bit of money, on ebay using the John Deere number MIU13323 I also searched it with the Kawasaki number 21121-2084 Coil-Ignition , wasn't any cheaper. But there was some used ones on there for half the money.Most places had it as discontinued . Just depends on which you love more , your money or your Deere.

which v-twin ???
Kawasaki or Briggs or Kohler
but I'd suspect a dirty carb just by your question

look underneath did drive belt snap in two , rear has white plastic fan on top of it that should be rotating with engine running if not yep you broke a belt , don't know about wire could it be from front PTO they are electric so it will need a wire ,one possibility is that drive belt broke slapped front PTO and broke off wire , that musta been some snow your pushin ooh and a reminder never push a hydrostatic drive tractor without pump turning it will dammage it

recheck the valve lash clearance

If you want to solve your problem, click on the link I attach.
JOHN DEERE X300 SERVICE REPAIR MANUAL

Water pump gear or the water pump impeller could have failed. If its the pump and due to it being at the bottom front side of the engine it would take some time for it to boil due to the fan is always pulling air down thru the radiator and its at the very top of engine. Cool water on top and really hot coolant around the cylinder with sensor. I'm sure it's the pump.

Try adjusting the deck height up a little or start a the carb.