DELCO-REMY High Energy Ignition: Testing: Notes

NOTE: During testing procedures, the following precautions must be observed: Do not ground tachometer terminal of distributor connector. Disconnect the ignition switch connector wire at distributor before making compression checks. Always twist spark plug boot 1/2 turn and pull on boot (not secondary lead) to remove. When using a timing light, connect at plug end of number 1 spark plug (do not pierce plug lead).