Timecutter z4200 My toro won't start ,batt ok seliniod ok jump started and blades turn

SOURCE: The motion control levers became tight to move and

You may have some bent or out of adjustment linkages, causing the brakes to stay on.
Or the friction nut (one on each transmission) is too tight. These are located just in front of the axel, they go through a slot, the washer behind the nut should turn freely

SOURCE: I need a toro z4200 drive belt diagram as my belt

I have the same problem and juts figer that out and put back on but still not working,

SOURCE: I have a Toro 38"

Have you checked out the seat safety switch and also is your mower capable of cutting in reverse? There are aslo safety switches on some models that kill the blades when backing up. Check these and see if you can find an issue with one of these. Sounds like one of the safety switches is going bad and killing the blades and then restarting them, if not then you may have a bad electric clutch or a loose wire on the clutch. Let me know what you find.

SOURCE: Toro 38" Locked up?

on the bottom of the engine there is a bolt but if there was little to no oil they will not warr it most shops don't rebuild anymore the just replace the whole engine where is it you live?

SOURCE: toro 52 inch walk behind blades won't engage

if it has a electric clutch check for power to the clutch if no check the safety switches