Owners manual
INSTALLATION INSTRUCTIONS  7
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 TIPS & TROUBLESHOOTING:
No spark after Tester is connected:
• Inspect the wiring of the tester. Make sure you have a good ground and 12 volt source. 
• Check to make sure you have the correct testing program for your application.
• Swap another coil in and repeat the test. If spark occurs, the coil is at fault.
Figure 11 Testing a Dual Coil MSD 10 Ignition.
NOTE: THE DUAL COIL MSD 10 HAS BEEN REPLACED 
BY THE MSD 10-PLUS IGNITION.








