SPARK PLUG INSPECTION [ZY]

Spark plug type

BP01 18 110, BP02 18 110, BP03 18 110, BP04 18 110, BP11 18 110, BP12 18 110, BP13 18 110A, BP14 18 110, BPY1 18 110, BPY2 18 110, BPY3 18 110, BPY4 18 110

Cleaning

Caution

• Carbon may adhere to the tip of the spark plug during vehicle delivery or repeated short distance driving during the winter time. If there is any malfunction such as rough idling or start difficulty due to carbon adhesion causing plug fouling, burn off the carbon by performing no-load racing of the engine.

• When performing the no-load racing, apply the side brake and foot brake, move the shift lever to neutral (MTX), or the selector lever to P position (ATX) to prevent an accident and serious injury.

• To avoid possible damage to the spark plug tip, do not use a wire brush for cleaning.

Note

• To avoid possible damage to the tip, use gasoline to clean the spark plugs after removing dirt.

• If the accelerator pedal is depressed continuously for a specified time, the engine speed may decrease to the idle speed. This is due to the fuel cut control operation, which prevents overheating, and it does not indicate a malfunction.

• Do not perform no-load racing at high engine speed continuously for 10 s or more.

1. If there is carbon adhering to the spark plug, perform no-load racing at 4,000 rpm for 2 min, 2 times.

Visual inspection

1. Check the following items.

• If there is any malfunction, replace the spark plug.

- Damaged insulation

- Worn electrode

- Damaged gasket

Plug Gap Inspection/Adjustment

1. Inspect the plug gap.

• If not within the specification, adjust the plug gap.

Spark plug gap

1.0-1.1 mm {0.040-0.043 in}

Resistance inspection

1. Measure the resistance of the spark plug using a tester.

• If not within the specification, replace the spark plug.

Spark plug resistance [20 °C {68 °F}]

BP01 18 110 (BKR5E 11)^*, BP02 18 110 (K16PR-U11)^*, BP03 18 110 (BKR6E 11)^*,

BP04 18 110 (K20PR-U11)^*, BPY1 18 110 , BPY2 18 110 , BPY3 18 110 , BPY4 18 110 :

3.0-7.5 kilohms

BP11 18 110 (RC10YC4)^*, BP12 18 110 (RC8YC4)^*, BP13 18 110, BP14 18 110 : 5.0-15 kilohms

* :

Making on the spark plug insulator area.