MSD 6520 Digital 6-Plus Ignition Control Installation - Manual (Page 10)

10 INSTALLATION INSTRUCTIONS
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6. If there is no spark:
A. Inspect all of the wiring.
B. Substitute another coil and repeat the test. If there is now spark, the coil is at fault.
C. If there is still no spark, check to make sure there are 12 volts on the small Red wire from the MSD
when the key is in the On position. If 12 volts are not present, find another switched 12 volt source
and repeat the test.
D. If, after following the test procedures and inspecting all of the wiring, there is still no spark, the MSD
Ignition is in need of repair. See the Warranty and Service section for information.
The following wiring diagrams illustrate numerous installations on different vehicles and applications. If
you experience difficulties when installing your MSD, contact our Customer Support Department at (915)
855-7123 (7 - 6 Mountain time) or e-mail us at: [email protected]