Yamaha Mio - Checking the Spark Plug

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CHK
ADJ
CHECKING THE SPARK PLUG
EAS00060
CHECKING THE SPARK PLUG
1. Remove:
• seat
• center cover
Refer to “REMOVING THE SEAT AND
SIDE COVERS”.
2. Disconnect:
• spark plug cap
3. Remove:
• spark plug
CAUTION:
_
Before removing the spark plug, blow away
any dirt accumulated in the spark plug well
with compressed air to prevent it from fall-
ing into the cylinder.
4. Check:
• spark plug type
Incorrect
→
Change.
5. Check:
• electrode
1
Damage/wear
→
Replace the spark plug.
• insulator
2
Abnormal color
→
Replace the spark plug.
Normal color is medium-to-light tan.
6. Clean:
• spark plug
(with a spark plug cleaner or wire brush)
7. Measure:
• spark plug gap
a
(with a wire thickness gauge)
Out of specification
→
Regap.
8. Install:
• spark plug
NOTE:
_
Before installing the spark plug, clean the
spark plug and gasket surface.
9. Connect:
• spark plug cap
Spark plug type (manufacturer)
C7HSA (NGK)
Spark plug gap
0.6 ~ 0.7 mm (0.024 ~ 0.028 in)
T
R
.
.
15 Nm (1.5 m · kg, 11 ft · lb)