Checking The Spark Plug - Yamaha MIO Service Manual

CHECKING THE SPARK PLUG

EAS00060
CHECKING THE SPARK PLUG
1. Remove:
• seat
• center cover
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
5. Check:
• electrode 1
• insulator 2
6. Clean:
• spark plug
7. Measure:
• spark plug gap a
8. Install:
• spark plug
NOTE:
_
Before installing the spark plug, clean the
spark plug and gasket surface.
9. Connect:
• spark plug cap
3 - 13
Refer to "REMOVING THE SEAT AND
SIDE COVERS".
Incorrect → Change.
Spark plug type (manufacturer)
C7HSA (NGK)
Damage/wear → Replace the spark plug.
Abnormal color → Replace the spark plug.
Normal color is medium-to-light tan.
(with a spark plug cleaner or wire brush)
(with a wire thickness gauge)
Out of specification → Regap.
Spark plug gap
0.6 ~ 0.7 mm (0.024 ~ 0.028 in)
15 Nm (1.5 m · kg, 11 ft · lb)
CHK
ADJ