Testing Precautions

The following precautions MUST be observed during testing procedures:

• DO NOT  ground tachometer terminal of distributor connector. Damage to the electronic module or ignition coil can result.
• Disconnect ignition switch connector at distributor before making compression checks.
• When using a timing light, connect at plug end of number 1 spark plug wire. DO NOT  pierce plug boot.
• Remove spark plug wires, twist boot 1/2 turn and pull on boot (not on wire).