Usually with a customers mower I would spend all night to get this thing working right. As I get better as a tech, and try to accurately pinpoint issues with my own mowers, You can get frustrated when the usual suspects aren't the problem, and you need to investigate a little more. I thought the carb was going to be the issue, but I am right back to thinking the belt or pulley is the suspect.
![](https://i.ytimg.com/vi/FoQcobzucjc/maxresdefault.jpg)