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Spark Plug u Checking Spark Plug
56
Maintenance
12.
Tighten the spark plug:
● If the old plug is good:
1/8 turn after it seats
● If installing a new plug, tighten it twice
to prevent loosening:
13.
Reinstall the spark plug cap. Take care
avoid pinching any cables or wires.
14.
Install the front over head center cover.
15.
Position the front over head covers on
both sides so the prongs are aligned with
the engine grommets.
16.
Push the prongs in.
17.
Install the caps, bolts and washers.
18.
Position the rear over head covers on
both sides so the prongs are aligned with
the engine grommets.
19.
Push the prongs in.
a) First, tighten the plug:
NGK: 3/4 turn after it seats.
DENSO: 1/2 turn after it seats.
b)Then loosen the plug.
c) Next, tighten the plug again:
1/8 turn after it seats.
NOTICE
Improperly tightened spark plugs can damage the engine.
If a plug is too lose, a piston may be damaged. If a plug is
too tight, the threads may be damaged.
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