Posted by jeffcat on May 06, 2014 at 08:55:44 from (173.72.26.60):
In Reply to: Starting my 300U posted by Danby on May 05, 2014 at 22:10:45:
As soon as you said coil from Srappa that is your problem. The coil has a resistor block on it? You MUST have that block. Drops the 12volts down to an 8volt coil. Most all car coils are like this. The problem is when you crank you do not have enough voltage at the coil to fire. Run a tiny wire from the output side of the solinoid to the + side of the coil. You will need to be able to remove this wire as SOON as the tractor fires up. If she fires right up you found the trouble. Install a Diode in this little wire and from now on it should work and not try to feed voltage back to the starter. Have seen this on a couple of 6 to 12 volt conversions that were not done correctly.
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