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CHK
GENERAL
ADJ
3. Check:
•
Spark plug type
Incorrect → Replace.
Standard spark plug
25B:
NGK BR7HS-10
30H:
NGK BR8HS-10
4. Measure:
•
Spark plug gap
Out of specification → Replace.
Spark plug gap
0.9-1.0 mm (0.035-0.039 in)
5. Tighten:
•
Spark plug
Spark plug
25 N
•
NOTE:
• Before installing the spark plug, clean
the gasket surface and spark plug sur-
face. Also, it is suggested to apply a
thin film of anti-seize compound to the
spark plug threads to prevent thread
seizure.
• If a torque wrench is not available, a
good estimate of the correct tightening
torque is to finger tighten
plug and then tighten it another 1/4 to
1/2 of a turn
CHECKING THE PROPELLER
Check:
•
Propeller
•
Spline
Wear/cracks/damage → Replace.
3-23
1
a
m (2.5 kgf
m, 18 ft
•
•
a
b
.
E
lb)
the spark
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