The TB is basically the same design as the MTDs. The last one I attempted to repair which was a blower ran fine until I took it out tested it. With running at operating speed I went out to the end of my driveway. I didn't get turn around for the return trip before it started failing.
Well I took it back to shop and disassemble it. The piston and cylinder was badly scored from the lack of oiling. I was fairly certain this was the problem before I even took it apart but wanted to verify my diagnosis.
I personally I don't even waste my time on these MTD, Ryobi, and Troy Bilt units anymore. They are use it until broken and replace units. What a shame the engineering is so lousy. If they resolve the oiling problems then they would be a great little engine. Just not repairable without a press and parts.
