I have decided to get a used over new mud motor so now I need some help. When looking at a used motor what do I need to look for? Are there any red flags that I will be able to spot easily? What kind of questions should I ask about the motor? I have some knowledge of motors in general but mud motors are a whole new game for me. Any help is appreciated thanks guys

A good tip given to me years ago was check the motor side of the exhaust. If the motor has been run hot a few times, it will be a good bit more rusted than the rest.

prop diameter.. coloration of oil. any movement in the prop. if it squirts out grease (usaully out of the upper seal) when its running. and running hours. thats bout it I chink

what they said, and ask the seller to take you for a good long ride and you drive