Honda XL125L Manual page 60

5. Check the spark plug gap using a wire-
type feeler gauge.
u If adjustment is necessary, bend the
side electrode carefully.
The gap should be:
0.80 to 0.90 mm (0.031 to 0.035 in)
Spark plug gap
6. Make sure the plug washer is in good
condition.
7. With the plug washer attached, thread
the spark plug in by hand to prevent
cross-threading.
8. Tighten the spark plug:
Side electrode
Improperly tightened spark plugs 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.
9. Reinstall the spark plug cap. Take care
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:
1/2 turn after it seats.
b) Then loosen the plug.
c) Next, tighten the plug again:
1/8 turn after it seats.
NOTICE
avoid pinching any cables or wires.
Checking Spark Plug
u
57