I have a low power issue with this tractor. Watched it pull in a video and noticed no black smoke, also the pull was not that impressive. I don"t have a vast knowledge of these tractors but I have seen a pretty good smoke show from one with a 4 bottom plow. I suspect not enough fuel. I think I will start with making sure it is getting full throttle travel(I need to read up on that). It starts good and runs good too, we did notice that when we idled it to the throttle stop it died. Maybe just a throttle adjustment. Fuel filters new before the pull (had moisture in them) any ideas would be great