I am having a problem with my Craftman lawn mower. I can start the motor up, but once it's started the motor shuts off right away. I have changed the filter, spark plug and oil and still get the same problem. Motor will start but shuts off after 1 second. Please help.

Thanks.

This problem also happens to my craftsman lawn mower. When i start the lawn mower i press the primer until it stays on. i hope this works for you.