Inspection Of Spark Plugs - TOHATSU MFS25 Service Manual

14) Inspection of Spark Plugs

1. Remove plug cap and then spark plugs.
2. Use spark plug cleaner or wire brush to clean spark plug
electrodes 1 . Replace if necessary.
Check electrodes 1 for corrosion or excessive build up of
3.
carbon, and washer 2 for damage. Replace if necessary.
Check spark plug gap a. Replace if gap is over specified
4.
value. Adjust gap if it is less than specified value.
Spark Plug Gap a : Standard
0.8 to 0.9mm ( 0.032 to 0.035 in )
Functional Limit :
1.2 mm ( 0.047 in )
Specified Spark Plug :
DCPR6E [ NGK ]
5. Install spark plug, fully hand-tighten, and then use plug
wrench to tighten to specified torque.
Spark Plugs :
18 N·m ( 13 lb·ft ) [ 1.8 kgf·m ]
25/30 2006
1
2
a
3
2
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