Your old post is going to run off the bottom, and I wanted to address it.BruceVA and souNdguy are both dead on. But I wanted to bring up the following. When the tractor turns over but refuses to start, the FIRST step should be to consult the dashboard ammeter. Actually, it should be consulted at EVERY start up. That way, you develop a feel for what it does, so when it does something different, you notice it. So, if changing your coil and cleaning the points get the job done, fine. If not, try this: Turn on the ignition without cranking. You should see approx. 3 amps discharge on dashboard ammeter. No discharge? Points are not making good contact or there is an open somewhere, possibly in the coil primary (but probably not in this case, since you just replaced the coil). Normal discharge? Crank the engine. You should see the ammeter flutter as the points open, creating a spark and interrupting the current flow, then close. No flutter? Points are shorted or there is a short elswhere in the system. The above procedure probably isolates at least seventy-five percent of ignition problems.
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