Tomy has offered to replace the engine realizing it was a mistake to sell this engine as it was. His offer was to run one at the factory and make sure it was ok before he sent it out. I responded that I would rather get one that hasn't been run but has been checked for quality, fit, piston height etc. I want to see what a good off the distributor shelf MT70 runs like. We'll see how this turns out. I have been in contact with other MT70 owners who received engines that turned over smoothly from the get go.