Honda activa 2009 Owner's Manual page 65

5. Inspect the electrodes and center
porcelain for deposits, erosion or carbon
fouling. If the erosion or deposit is
heavy, replace the plug. Clean a carbon
or wetfouled plug with a plug cleaner,
otherwise use a wire brush.
6. Check the spark plug gap (3) using a
wire gauge. If adjustment is necessary,
bend the side electrode (4) carefully.
The gap should be:
0.80–0.90 mm (0.031–0.035 in)
(4)
(3) Spark plug Gap
¼LikdZ Iyx xS i ½
(4) Side Elecrode ¼lkbM byS D Vª k s M ½
(3)
7. With the plug washer attached thread
the spark plug in by hand prevent
cross-threading.
8. Tighten the spark plug:
• If the old plug is good
1/8 turn after it seats.
• If installing a new plug, tighten it twice
to prevent loosening:
a) First tighten the plug:
NGK:3/4 turn after it seats.
b) Then loosen the plug.
c) Next, tighten the plug again:
1/8 turn after it seats.
NOTICE
Improperly tightened of spark plug may
damage the engine.
9. Reinstall the spark plug cap.
57