Product Manual

wc_tx004574gb.fm

GP Maintenance

5.5 Cleaning and Checking the Spark Plug

When

Every 100 hours

Requirements

 Engine stopped and cool to the touch

 Spark plug wrench

 Spark plug gap tool

 Wire brush

 Replacement spark plug as needed (see Technical Data)

Procedure

Perform the procedure below to clean and check the spark plug.

1. Disconnect the spark plug wire (b) and remove the spark plug (a).

2. Inspect the spark plug. Replace the spark plug if the insulator (c) is cracked or

chipped.

3. Clean spark plug electrodes (d) with a wire brush to remove carbon deposits.

4. Check the electrode gap (e) and adjust as needed. See Technical Data for the

recommended gap setting.

5. Re-install the spark plug.

NOTICE: A loose spark plug can become very hot and may cause engine damage.

WARNING

Burn hazard. The engine and muffler become very hot during operation and require

cool-down time after the engine is stopped.

► Do not touch the engine, muffler, or spark plug until the machine is cool.

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