25
500Wi OM
5.5 Spark plug maintenance
RECOMMENTED SPARK PLUG: CMR5H
To ensure proper engine operation, the spark plug must be properly gapped and free of deposits.
1.
Loosen the cover screw and remove the spark plug maintenance cover.
2.
Remove the spark plug cap.
3.
Clean any dirt from around the spark plug base.
4.
Use the supplied wrench to remove the spark plug.
5.
Visually inspect the spark plug. Discard it if the insulator is cracked or chipped.
6.
Clean the spark plug with a wire brush if it is to be reused.
7.
Measure the plug gap with a feeler gauge.
8.
The gap should be 0.024-0.028in (0.6-0.7mm). Correct as necessary by carefully bending the side
electrode.
Spark Plug Access Door
Screw
Spark Plug
Wrench
Spark Plug
Cap
