Ignition System and Distributor
D Spark Plug Check each spark plug for the following faults. If necessary, replace the spark plug: 1. Damage to insulator 2. Wear to electrodes 3. Deposit of carbon To remove carbon deposit, use a plug cleaner or wire brush. At the same time, clean the insulator tip (glass). 4. Damage to gasket. 5. Burnt insulator gasket (glass). Black carbon coating on the insulator tip is caused by too rich a fuel mixture, excessively insufficient intake air, or misfires due to excessively large plug gap. Whitish coating on the insulator tip is caused by too thin a fuel mixture, advanced ignition timing, or loose spark plug. 6. Check the plug gap. If necessary, adjust it to specification. 1.52in, 060mm gap. 7. Do not over tighten spark plugs when replacing or inspecting them. See Torque section for values.
-122-
