Hi folks! I have a '91 Murray Ultra with the 19 hp. engine which all this time has performed flawlessly since new. Well, went out to start it the other day and it fired off as usual and died in about a minute. I put a new coil on, checked all the grounds, and have temporarily disabled all the safties. I am still not getting any spark. Can a new coil be bad? The engine info is model: 42A707, Type 165201, and Code 9506295B . I even pulled the flywheel to check and see if the key was sheared, but NO it is in perfect condition. Any ideas? I need this ole girl for mowing, tilling, and pushing dirt.
 
Check the kill wire going to the switch you should be able to disconnect it at the coil then try starting the engine
GB in MN
 
I agree with MNGB take the small wire from the coil and unhook it and see if it will run. By the way you will not be able to shut it down again with the switch if it is unhooked but if you have it so you can put that wire on the block some place that will shut it down. I have a push mower that has a bad shut down switch on it so I just have that wire sticking out the side and when I want to shut it off and just touch it to the block
 
If you replaced the coil.you may have too much gap between the coil and flywheel. I too would unhook the small wire from the coil and then check for spark.
 
One other thing to add. The ground "stop" wire is a good start. Does this have a key switch? That could have gone bad. One other thing is your spark plug went bad. Crazy but 5hey do
 
Thanks guys. I replaced the switch three years ago, but like everything in this world it could have gone bad. I'll try unhooking the wire coming off the coil and see what happens. May be a few days before I get a chance to get back to this tractor.
 
By the way. If you replace or take off the coil assembly there is a very easy way to adjust it correctly. Go to the super market and buy a plastic fold over container of cookies or cupcakes. The plastic is usually dead on .10 thick. Cut a little piece and slip it between the magnet and the coil. Tighten the two screws and pull out the plastic " feeler gauge".
 

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