2009 Yamaha Motorsports Phazer M-TX Owners Manual - Page 59

2009 Yamaha Motorsports Phazer M-TX Manual

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Periodic maintenance and adjustment 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. Also, if the reach is too short, carbon will form on the exposed threads resulting in combustion chamber hot spots and thread damage. Always use a spark plug with the specified reach. Spark plug reach: 19.0 mm (0.75 in) 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 securely installed. Otherwise the spark plug caps could be damaged due to engine vibration. ESU11811 Adjusting the engine idling speed 1. 2. 3. Start the engine and warm it up. Select the engine speed meter mode. (See page 11 for details.) Remove the rubber cap. 1. Spark plug gap 2. Spark plug reach 1. Rubber cap 4. 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) 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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Periodic maintenance and adjustment
53
WARNING
EWS00710
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.
Before installing any spark plug, measure the
electrode gap with a wire thickness gauge
and adjust to specification.
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.
NOTICE
ECS00382
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.
4.
Insert a Phillips screwdriver into the hole,
and then turn the idle adjusting screw in
or out to adjust the engine idling speed.
Spark plug reach:
19.0 mm (0.75 in)
1.
Spark plug gap
2.
Spark plug reach
Spark plug gap:
0.6–0.7 mm (0.024–0.028 in)
Spark plug tightening torque:
12.5 Nm (1.25 m·kgf, 9 ft·lbf)
1.
Rubber cap