Honda HRJ196 Manual page 47

42VL96000.book 47 ページ ２０１２年１０月５日 金曜日 午前１０時７分
2.Use a spark plug wrench to remove the spark plug.
3.Inspect the plug; replace it if the electrode is worn, or if the insulator
is cracked or chipped. Clean plug completely if you are going to reuse
it.
4.Measure the spark plug gap with a suitable gauge. The gap should be
0.7–0.8 mm. Correct the gap, if necessary, by bending the side
electrode.
SPARK PLUG WRENCH
5.Install the spark plug carefully by hand, to avoid cross-threading.
6.After the spark plug seats, tighten with a spark plug wrench to
compress the washer.
If reinstalling the old spark plug, tighten 1/8 to 1/4 turn after the
spark plug seats.
If installing a new spark plug, tighten 1/2 turn after the spark plug
seats.
• A loose spark plug can overheat and damage the engine.
• Overtightening the spark plug can damage the threads in the
cylinder head.
7.Install the spark plug cap on the spark plug.
SIDE ELECTRODE
SEALING
WASHER
INSULATOR
0.7–0.8 mm
47