Quote:
Originally Posted by R Bedell
Here is a quick test you can perform. Take everything off the negative Ign Coil Term. Install a jumper wire on that terminal. Turn on the Ignition Switch. With the opposite end of the wire, touch the motor block (ground) momentarily, if all is well, you should see a small spark at the end of the wire and spark at the Spark Plug.
OR.....
Take everything off the negative Ign Coil Term. Turn on the Ignition Switch. Take the black or negative meter lead and attach to motor ground. With the Red meter lead, if all is well, you should have 12V at both the positive and negative terminals of the Ignition Coil.
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Sound advice here and good illustrations cub 128. Really worth the investment to buy a DVOM no matter what kind you get. These checks will let the meter show you what's wrong rather than "swaptronics". I'm sure there are primary and secondary resistance readings that you can take on the coil as well to see if it is bad but again a meter is a valuable tool that saves a lot of time in troubleshooting. I have a Simpson analog and Fluke 87 that I use every day to work on electric lift trucks and its well worth the time and effort to learn how to use one for whatever electrical system you're wanting to diagnose. Just my .02.