I am going to have to keep an eye on this thread. I have a ryobi which is ready for testing. I went ahead and ground the transfer ports, so they are one big slot instead of 2. I posted this a while ago, and i think the title was: could this be the key to power. I havent ran the engine yet cause i dont have a mount. I should also look into getting a tach so i dont over rev the engine. If i ruin this engine, im not too worried, i have a nice stihl engine waiting to be ran as well.