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Posted by Vaughn on Sunday, July 05, 2009 at 11:16:21 :
In Reply to: Do I have a bad coil? posted by Galen on Saturday, July 04, 2009 at 11:31:47 :
To test, remove the coil cable from the dist. cap and hold it about 3/16 in from a good ground using insulated plyers or other tool. Have someone operate the stater to turn the engine to see if you get a bright blue spark. If you get a weak yellowish or red spark, the coil is producing insufficent voltage. This can be caused by:
Bad condensor, points, ballast resistor, or coil.
Points are usually the cause, I would replace and retest
If you do have fresh components, I would replace the coil and retest.