I recently purchased a Murray push mower and was getting help from my neighbor to help set it up and get it ready for me to use. He poured the oil in the wrong compartment and it started up fine and was fine for 5 minutes and then it cut off and now it won't start again. After checking everything come to find out he put the oil where the gas is pushed through by pressing the primer injector under the filter. If anyone can help that would be great! Thank you!!