Yamaha DT200L 1984-1988 Service Manual page 48

INSP
ADJ
SPARK PLUG INSPECTION
2. Clean:
• Spark plug
dean the spark plug with a spark plug
cleaner or wire brush.
3. Inspect:
• Spark plug type
Incorrect - Replace
Standard Spark Plug: BR8ES (NGK)
4. Measure:
• Spark plug gap
Out of specification -< Regap.
Use a wire gauge.
Spark Plug Gap:
0.7 ~ 0. 8 mm (0. 028 ~ 0. 031 in)
5. Tighten:
• Spark plug
NOTE:
Before installing a spark plug, clean the gasket
surface and plug surface.
20 Nm (2.0m-kg, Uft-lb)
NOTE:
If a torque wrench is not available when you are
installing a spark plug, a good estimate of the
correct torque is 1/4 to 1/2 turns part finger
tight. Have the spark plug torqued to the correct
value as soon as possible with a torque wrench.
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