gravely riding mower died while mowing now won'tstart

[edkaygray]

Was driving mower and it quit running just like someone had turned the switch off. I have hit a couple of rough spots in yard hitting seat fairly hard and with second bump it died. Then would not start. Tried by passing switch and starter turns trying to start but will not turn over. Replaced 2 safety switches, one under seat and other one found. Any suggestions of what else could be? Thanks!!

 

[bertsmobile1]

Was driving mower and it quit running just like someone had turned the switch off. I have hit a couple of rough spots in yard hitting seat fairly hard and with second bump it died. Then would not start. Tried by passing switch and starter turns trying to start but will not turn over. Replaced 2 safety switches, one under seat and other one found. Any suggestions of what else could be? Thanks!!

No need to post multiple places, it will just get every one confused.
A few things will help us
1) model number of your Gravely
2) model number and code (if a B & S ) of your engine
3) a little care with your wording
Turn over = rotate
So is your starter motor doing 1/2 a revolution and stopping or is the starter motor turning over the engine but it is not firing ?
If the former, try removing the spark plug and turning the engine by hand.
If it stops at the same place backwards & forewards over 1 revolution then chances somthing has come loose under the flywheel and is jambing the engine.
If it does the same thing over 2 revolutions then something is adrift inside the engine.

If you can turn it over without the plug easily bit not turn it over with the plug in the chances ae one of the pushrods has bounced off the rocker.
If it looks electrical then take note of the reply in the other posting.