Honda NSS300 Forza - Owner's Manual > Spark Plug

Maintenance / Spark Plug

Checking & Changing Spark Plug

For the recommended spark plug, see "Specifications".

Use only the recommended type of spark plug in the recommended heat range.

Checking & Changing Spark Plug

NOTICE Using spark plugs with an improper heat range can cause engine damage.

1. Place your scooter on its centre stand on a level surface.

2. Pull the floor mat off.

3. Remove the screw.

4. Remove the plug maintenance lid by inserting a flat head screwdriver covered with a protective cloth into the slit on the floor.

5. Disconnect the spark plug cap.

6. Clean any dirt from around the spark plug base.

7. Remove the spark plug using the spark plug wrench provided in the tool kit.

Checking & Changing Spark Plug

8. Inspect the electrodes and centre porcelain for deposits, erosion or carbon fouling.

9. Check the spark plug gap using a wiretype feeler gauge.

Checking & Changing Spark Plug

10. Make sure the plug washer is in good condition.

11. With the plug washer attached, thread the spark plug in by hand to prevent cross-threading.

12. Tighten the spark plug:

NOTICE Improperly tightened spark plug can damage the engine.

If a plug is too loose, a piston may be damaged. If a plug is too tight, the threads may be damaged.

13. Reinstall the spark plug cap. Take care avoid pinching any cables or wires.

14. Install the parts in the reverse order of removal.

See also:

 Honda NSS300 Forza - Owner's Manual > Removing & Installing Body Components

Battery Cover The battery cover must be removed to remove the battery, to service the fuse box and fuse holder fuses.

 Honda NSS300 Forza - Owner's Manual > Engine Oil

Checking the Engine Oil 1. Park your scooter on its centre stand on a firm, level surface. 2. If the engine is cold, idle the engine for 3 to 5 minutes. 3. Turn the ignition switch off, stop the engine and wait for 2 to 3 minutes.