Hey all so my son has a 06 pred 50. Well we failed to check the injection oil tank and it was empty and he ended up seizing the engine. I tore it apart and got a 70cc big bore kit for it. Put it back together and it fired up sounded wicked but now only runs for about 10 minutes and then cuts off. It bogs down and has no power. I replaced the stock carb with a new stock carb because old carb was bad and leaking. I also replaced coil with hi performance coil as well. But I’m still having the same issue.