Posted by johnald on September 15, 2014 at 08:19:35 from (74.240.136.116):
Here is the run down:
cub has been sitting for a year while I found time to work on it.
rebuilt motor, a little paint and finally got it back together. Wouldn't start when I first cranked it so I started checking the usual suspects. Whittled it down to not getting spark so I checked the coil, it seemed out of speck so I replaced it. When I did this I went from an old 12v coil to a new 6v coil with external resistor as that was all I could find at the time. Points looked good but I replaced them anyway to be sure. After replacing points, condenser and coil I pulled a plug to check for spark. As I cranked the engine I got one beautiful spark then nothing. I went to get a tool or something and accidentally left the key on. The resistor got pretty warm which did not seem right. Makes me think there is a short somewhere but I can't find one. Every connection and wire seems to get the proper voltage but I haven't been able to reproduce a spark. I'm pretty stumped on this one and I need to move on from this project and get this tractor running. Any help/advice is greatly appreciated.
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Today's Featured Article - Tuning-Up Your Tractor: Plugs & Compression Testing - by Curtis Von Fange. The engine seems to run rough. In the exhaust you can hear an occasion 'poofing' sound like somethings not firing on all cylinders. Under loaded conditions the tractor seems to lack power and it belches black smoke out of the exhaust. For some reason it just doesn't want to start up without cranking and cranking the starter. All these conditions can be signals that your unit is in need of a tune up. Ok, so what is involved in a tune up? You say, swap plugs and file the points....now tha
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