MAC TOOLS EM721 Manual Del Usuario página 51

Meter setup to measure spark plug wire resistance:
•
Set the rotary switch to resistance (Ω ) setting.
•
If " " is present on the display, press the "DWL" button until " " disappears.
•
Insert the black lead in the "COM" jack.
•
Insert the red lead in the "
Connect:
•
Test probes to opposite ends of the spark plug wire.
Press the "REC" button (selects the MAX.MIN.AVG function).
The reading is dependent on the length of the wire you are measuring. Typical measurements are approximately
10kΩ per foot of wire. For example, two feet of spark plug wire should measure about 20kΩ .
Compare readings to other spark plug wires on the same engine to insure accuracy of the test.
NOTE: Be sure the test probe tips make contact with the center conductor of the wire.
800.MACTOOLS
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Black
" jack.
Red
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