Re: 8N runs for a couple of seconds, then dies.

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Posted by Bruce (VA) on June 10, 2017 at 22:26:12 [URL] [DELETE] :

In Reply to: 8N runs for a couple of seconds, then dies. posted by Gregg on June 10, 2017 at 22:11:58:

You could have a fuel problem or you could have a spark problem.

You need to stop replacing parts before you troubleshoot the problem. Unless you have confirmed that the part is defective, assume it works.

First, put your battery on a charger. (see tip # 60)

You need a strong battery to:

1. Close the solenoid

2. Spin the starter

3. Engage the bendix

4. Provide voltage to the coil.

As the battery gets weaker, the first thing to fail is your spark. If the battery is almost totally dead, all you will hear is the solenoid clicking.

The more current you use to spin the starter, the less you have for the ignition.

Once the battery is fully charged, try to start it. Now this is the important part: as soon as it stops running, not five minutes later, find the answer to these two questions:

Does the tractor have a spark that will jump 1/4" in open air?*

Will the gas drain out of the carb bowl in a steady stream and fill a pint jar in less than 2 minutes?

Post back w/ what you find.

*If you don’t own a spark checker w/ an adjustable gap, buy one. In the meantime, an old spark plug w/ the gap opened to at least ¼” will work. Ground it to a rust & paint free spot on the engine turn the key on & look for a spark.

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