1st Generation Specific (1979-1985) 1979-1985 Discussion including performance modifications and technical support sections

Compression Testing QUESTION - Yes i searched...

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Old May 3, 2010 | 06:53 PM
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TX Compression Testing QUESTION - Yes i searched...

There seems to be something i am unsure of (my first carb'd engine...).
When performing the compression test, should I unplug anything in the way of IGNITION? Car has no plug wires on it at the moment, and wanted to compression test tonight. I just don't want to be mildly electrocuted by touching the chassis/body while cranking the car with no wires on it...

On my 86 and 88 all i had to do was unplug EGI fuse, but that is irrelevant here..

Any help?

Thanks,
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Old May 3, 2010 | 06:58 PM
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Pull blue connector off the trailing coil.
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Old May 4, 2010 | 09:19 AM
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If you had read the mazda FSM you would know that you don't need to pull anything for a 12A aside from spark plugs. Also, mildly electrocuted would be the same as extremely electrocuted, as electrocuted means to die from electric shock.
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Old May 4, 2010 | 09:34 AM
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Medium rare versus crispy critter?
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Old May 4, 2010 | 10:32 AM
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Originally Posted by DivinDriver
Medium rare versus crispy critter?
That would be the difference between Low Output coils vs High Output coils LOL,,,, JK
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