Checking The Spark Plug - Yamaha CS50 Service Manual

CHECKING THE SPARK PLUG

EAS00060
CHECKING THE SPARK PLUG
1. Disconnect:
2. Remove:
Before removing the spark plug, blow away
any dirt accumulated in the spark plug well
with compressed air to prevent it from
falling into the cylinder.
3. Check:
4. Check:
5. Clean:
6. Measure:
7. Install:
NOTE:
Before installing the spark plug, clean the
spark plug and gasket surface.
8. Connect:
3-10
• spark plug cap
• spark plug
CAUTION:
• spark plug type
Incorrect Change.
Spark plug type (manufacturer)
BR8HS (NGK)
• electrode
Damage/wear Replace the spark plug.
• insulator
Abnormal color
Normal color is medium-to light tan.
• spark plug
(with a spark plug cleaner or wire brush)
• spark plug gap k a
(with a wire Thickness gauge)
Out of specification
Spark plug type (manufacturer)
0,6 ~ 0,7 mm
• spark plug
• spark plug cap
CHK
ADJ
Replace the spark plug.
Regap.
20 Nm (2.0 m • kg)