Only reason I said that is my friend has so much oil in his tank it was still fieeding alittle. He had it filled above the return line, so he didn't notice it right away. A couple weeks later it locked up. He had only ridden it a few times and a few blocks as he didn't have a permit yet at the time. Hope you're able to get the other motor. Sometimes(most it's way cheaper and easier to just swap them out.) I usually check the cam out on any new motor and make sure nothing is stripped out and all is tight up top before running. Good luck.