We're sorry to hear that your unit is experiencing starting issues after just a few hours of use. If this is occurring after the initial 5-hour break-in period, we recommend draining the engine oil and refilling it to the top of the crankcase, as the first 5 hours are considered the break-in period. Please note that there is a low oil sensor in the unit. If the oil level is too low or needs to be changed, the unit will either fail to start or will start and shut down automatically. If you've already completed this step and are still experiencing issues, please don't hesitate to reach out to our support team. We would be happy to assist you in getting the unit running again. You can contact us at 1-877-338-0999, email us at support@cpeauto.com, or use the live chat feature on our main website.