−
−
0.02
0.03 in (0.6
0.7 mm)
76
Spark Plug
Servicing Your Honda
Improperly tightened spark plugs can damage
the engine. Too loose, you can burn a piston.
Too tight, you can damage the threads.
Tighten the spark plug:
Disconnect the spark plug cap.
Clean any dirt from around the spark plug
base.
Remove the spark plug with a plug wrench.
Inspect the spark plug electrodes for wear.
The center electrode ( ) should have square
edges. The side electrode ( ) should not be
eroded. The insulator should not be cracked
or chipped.
Check the spark plug gap ( ), using a wire-
type feeler gauge. If adjustment is necessary,
bend the side electrode carefully. The gap
should be:
Make sure the plug washer is in good
condition.
If you have to install a new plug, first check
the gap.
With the plug washer attached, thread the
spark plug in by hand (to prevent cross-
threading).
about 1/8-1/4 turn after it seats (if the old
plug is good).
about 1/2 turn after it seats (if installing a
new plug).
2.
3.
4.
5.
6.
7.
3
1
1.
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03/06/17 14:24:24 31GCF670_085
Summary of Contents for CRF70F 2004
Page 2: ...2004 Honda CRF70F OWNER S MANUAL 03 06 17 14 13 09 31GCF670_002 ...
Page 9: ...03 06 17 14 14 01 31GCF670_009 ...
Page 31: ...22 Operating Controls 03 06 17 14 16 29 31GCF670_031 ...
Page 133: ...124 Taking Care of the Unexpected 03 06 17 14 31 16 31GCF670_133 ...
Page 169: ...160 Memo 03 06 17 14 35 34 31GCF670_169 ...
