Having a problem getting my mower to crank. Purchased a new battery,new solenoid, new starter. When the key is turned you can hear a click but the starter does not engage the engine. The mower was running earlier in the day and then I changed the oil and filter and now the engine won't crank. This is a well maintained mower and not abused with 210 engine hours. Also took off all the connections, including the ground and cleaned and reconnected, same result.