Filled my wood wagon last Sun. went to go grade the drive on Mon. and tractor would not start, I am getting hit and miss spark, changed plugs, I can see spark continously at the points and my test light says I have power at the coil, but I am not getting any power at the plug boots? I changed coil to NEW deere coil but am having the same problem, I have never had any issues with this tractor can someone give me a hand? Thanks for listening by the way. Rick