3-5
dummyhead
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WB20XT2•WB30XT2
MAINTENANCE
SPARK PLUG CHECK/ADJUSTMENT
Remove the spark plug (page 3-5).
Check the following and replace if necessary.
– Insulator (1) and sealing washer (2) for damage
– Center electrode (3) and side electrode (4) for wear
– Burning condition, coloration
Measure the plug gap with a wire-type feeler gauge.
If the measurement is out of the specification, adjust by
bending the side electrode.
Install the spark plug (page 3-5).
SPARK PLUG REPLACEMENT
REMOVAL
Disconnect the spark plug cap (1) and remove the
spark plug (2).
Clean around the spark plug base with compressed air
before removing the spark plug, and be sure that no
debris is allowed to enter into the combustion chamber.
INSTALLATION
Install and hand tighten the spark plug to the cylinder
head.
Tighten the spark plug to the specified torque.
Connect the spark plug cap.
RECOMMENDED SPARK PLUG:
BPR6ES (NGK)
PLUG GAP: 0.70 – 0.80 mm (0.028 – 0.031 in)
(4)
(1)
(2)
(3)
The engine and the muffler become very hot during
operation and remain hot for a while after stopping
the engine. Be careful not to touch the muffler while
it is hot. Allow it to cool before proceeding.
RECOMMENDED SPARK PLUG:
BPR6ES (NGK)
TORQUE: 18 N·m (1.8 kgf·m, 13 lbf·ft)
(2)
(1)
Summary of Contents for WB20XT2
Page 15: ...MEMO dummyhead dummyhead...
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Page 48: ...5 1 5 dummytext 5 COVER FAN COVER REMOVAL INSTALLATION 5 2...
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Page 96: ...11 1 11 dummytext 11 ENGINE REMOVAL INSTALLATION ENGINE REMOVAL INSTALLATION 11 2...
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Page 130: ...15 1 15 dummytext 15 WIRING DIAGRAM WIRING DIAGRAM 15 2...