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EWS00710
WARNING
Be sure to use the specified spark plug
and spark plug cap. Otherwise, the
T.O.R.S. may not work properly.
Spark plugs are produced in several different
thread lengths. The thread length or reach is
the distance from the spark plug gasket seat
to the end of the threaded portion. If the reach
is too long, overheating and engine damage
may result. If the reach is too short, spark plug
fouling and poor performance may result. Al-
so, if the reach is too short, carbon will form on
the exposed threads resulting in combustion
chamber hot spots and thread damage. Al-
ways use a spark plug with the specified
reach.
Spark plug reach:
19.0 mm (0.75 in)
1. Spark plug gap
2. Spark plug reach
Before installing any spark plug, measure the
electrode gap with a wire thickness gauge
and adjust to specification.
Spark plug gap:
0.6–0.7 mm (0.024–0.028 in)
Periodic maintenance and adjustment
When installing the spark plug, always clean
the gasket surface. Wipe off any grime from
the threads and tighten the spark plug to the
specified torque.
Spark plug tightening torque:
12.5 Nm (1.25 m·kgf, 9 ft·lbf)
ECS00382
NOTICE
Make sure that the spark plug caps are se-
curely installed. Otherwise the spark plug
caps could be damaged due to engine vi-
bration.
ESU11811
Adjusting the engine idling
speed
1.
Start the engine and warm it up.
2.
Select the engine speed meter mode.
(See page 11 for details.)
3.
Remove the rubber cap.
1. Rubber cap
4.
Insert a Phillips screwdriver into the hole,
and then turn the idle adjusting screw in
or out to adjust the engine idling speed.
53
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