I have a 9n and here lately when I push the start button it just sparks on the - battery post. I have taken the starter off and had it rebuilt but once installed it does the same thing. I took it off and spun the flywheel ring gear a bit and then replaced the starter and it fired up. Now it is doing it again and I have taken the starter off 5 times and moved the ring gear to new teeth every time but will not turn over just sparks so...is it time to split the tractor and replace the ring gear?
Any help would be appreciated.