PERIODIC MAINTENANCE AND ADJUSTMENT
6-12
6
EAU19652
Checking the spark plugs The spark plugs are important engine
components, which should be checked
periodically, preferably by a Yamaha
dealer. Since heat and deposits will
cause any spark plug to slowly erode,
they should be removed and checked
in accordance with the periodic mainte-
nance and lubrication chart. In addition,
the condition of the spark plugs can re-
veal the condition of the engine.
The porcelain insulator around the cen-
ter electrode of each spark plug should
be a medium-to-light tan (the ideal color
when the vehicle is ridden normally),
and all spark plugs installed in the en-
gine should have the same color. If any
spark plug shows a distinctly different
color, the engine could be operating im-
properly. Do not attempt to diagnose
such problems yourself. Instead, have
a Yamaha dealer check the vehicle.
If a spark plug shows signs of electrode
erosion and excessive carbon or other
deposits, it should be replaced.Before installing a spark plug, the spark
plug gap should be measured with a
wire thickness gauge and, if necessary,
adjusted to specification.
Clean the surface of the spark plug
gasket and its mating surface, and then
wipe off any grime from the spark plug
threads.
TIPIf a torque wrench is not available when
installing a spark plug, a good estimate
of the correct torque is 1/4–1/2 turn
past finger tight. However, the spark
plug should be tightened to the speci-
fied torque as soon as possible.NOTICE
ECA10840
Do not use any tools to remove or in-
stall the spark plug cap, otherwise
the ignition coil coupler may get
damaged. The spark plug cap may
be difficult to remove because the
rubber seal on the end of the cap fits
tightly. To remove the spark plug
cap, simply twist it back and forth
while pulling it out; to install it, twist
it back and forth while pushing it in.
Specified spark plug:
NGK/CR10EK
1. Spark plug gapSpark plug gap:0.6–0.7 mm (0.024–0.028 in)
Tightening torque: Spark plug:13 Nm (1.3 m·kgf, 9.4 ft·lbf)
1
1
U1JSE0E0.book Page 12 Wednesday, July 27, 2011 10:34 AM
PERIODIC MAINTENANCE AND ADJUSTMENT
6-13
6
EAU3899C
Engine oil and oil filter car-
tridge The engine oil level should be checked
before each ride. In addition, the oil
must be changed and the oil filter car-
tridge replaced at the intervals speci-
fied in the periodic maintenance and
lubrication chart.
To check the engine oil level1. Place the vehicle on a level sur- face and hold it in an upright posi-
tion. A slight tilt to the side can
result in a false reading.
2. Start the engine, warm it up for several minutes, and then turn it
off.
3. Wait a few minutes until the oil set- tles.
4. Remove the engine oil dipstick and wipe it clean, insert it back into the
hole (without screwing it in), and
then remove it again to check the
oil level.TIPThe engine oil should be between the
minimum and maximum level marks.
5. If the engine oil is at or below theminimum level mark, remove the
engine oil filler cap, and then add
sufficient oil of the recommended
type to raise it to the correct level. 6. Insert and tighten the engine oil
dipstick, and then install and tight-
en the oil filler cap.
To change the engine oil (with or
without oil filter cartridge replace-
ment) 1. Place the vehicle on a level sur- face.
2. Remove cowling A. (See page 6-8.)
3. Start the engine, warm it up for several minutes, and then turn it
off.
4. Place an oil pan under the engine to collect the used oil.
5. Remove the engine oil filler cap, the engine oil drain bolt and its
gasket to drain the oil from the
crankcase.1. Engine oil dipstick
2. Maximum level mark
3. Minimum level mark
1. Engine oil filler cap
U1JSE0E0.book Page 13 Wednesday, July 27, 2011 10:34 AM
PERIODIC MAINTENANCE AND ADJUSTMENT
6-16
6addition, do not use oils labeled
“ENERGY CONSERVING II” or
higher.
●
Make sure that no foreign mate-
rial enters the crankcase.
15. Start the engine, and then let it idle
for several minutes while checking
it for oil leakage. If oil is leaking, im-
mediately turn the engine off and
check for the cause.TIPAfter the engine is started, the engine
oil level warning light should go off if the
oil level is sufficient.NOTICE
ECA10401
If the oil level warning light flickers
or remains on even if the oil level is
correct, immediately turn the engine
off and have a Yamaha dealer check
the vehicle.16. Turn the engine off, and thencheck the oil level and correct it if
necessary.
17. Install the cowling.
EAU20070
Coolant The coolant level should be checked
before each ride. In addition, the cool-
ant must be changed at the intervals
specified in the periodic maintenance
and lubrication chart.
EAU39087
To check the coolant level 1. Place the vehicle on a level sur- face and hold it in an upright posi-
tion.TIP●
The coolant level must be checked
on a cold engine since the level
varies with engine temperature.
●
Make sure that the vehicle is posi-
tioned straight up when checking
the coolant level. A slight tilt to the
side can result in a false reading.
2. Check the coolant level in the cool-ant reservoir.TIPThe coolant should be between the
minimum and maximum level marks.
3. If the coolant is at or below theminimum level mark, remove pan-
el B to access the coolant reser-
voir. (See page 6-8.)
4. Remove the coolant reservoir cap, add coolant to the maximum level
mark, and then install the reservoir
cap. WARNING! Remove only
the coolant reservoir cap. Never
attempt to remove the radiator
cap when the engine is hot.
[EWA15161]
NOTICE: If coolant is not
available, use distilled water or
soft tap water instead. Do not
use hard water or salt water
since it is harmful to the engine.
1. Coolant reservoir
2. Maximum level mark
3. Minimum level mark
U1JSE0E0.book Page 16 Wednesday, July 27, 2011 10:34 AM
INDEXAAir filter element .................................... 6-19
Anti-theft alarm (optional)...................... 3-14
Auxiliary light ......................................... 6-38BBattery................................................... 6-33
Brake and clutch levers, checking and lubricating ..................... 6-30
Brake and shift pedals,
checking and lubricating ..................... 6-30
Brake fluid, changing ............................ 6-26
Brake fluid level, checking .................... 6-25
Brake lever ............................................ 3-16
Brake lever free play, checking ............. 6-23
Brake light switches .............................. 6-24
Brake pedal ........................................... 3-17CCables, checking and lubricating .......... 6-29
Care ........................................................ 7-1
Catalytic converters .............................. 3-19
Clutch lever ........................................... 3-15
Clutch lever free play, adjusting ............ 6-23
Coolant.................................................. 6-16
Coolant temperature warning light .......... 3-5
Cowlings and panels, removing and installing ......................... 6-8DDimmer switch ...................................... 3-14
Drive chain, cleaning and lubricating .... 6-28
Drive chain slack ................................... 6-27EEngine break-in ....................................... 5-3
Engine idling speed, checking .............. 6-19
Engine oil and oil filter cartridge ............ 6-13 Engine stop switch................................ 3-15
Engine trouble warning light ................... 3-7
EXUP system ....................................... 3-28
FFront and rear brake pads, checking .... 6-24
Front fork, adjusting .............................. 3-22
Front fork, checking .............................. 6-32
Fuel....................................................... 3-18
Fuel consumption, tips for reducing........ 5-3
Fuel level warning light ........................... 3-4
Fuel tank breather hose and
overflow hose ..................................... 3-19
Fuel tank cap ........................................ 3-17
Fuses, replacing ................................... 6-34HHandlebar switches .............................. 3-14
Hazard switch ....................................... 3-15
Headlight bulb, replacing ...................... 6-35
Helmet holding cable ............................ 3-21
High beam indicator light ........................ 3-4
Horn switch ........................................... 3-15IIdentification numbers ............................ 9-1
Ignition circuit cut-off system ................ 3-29
Immobilizer system ................................. 3-1
Immobilizer system indicator light........... 3-7
Indicator lights and warning lights .......... 3-4LLicense plate light bulb, replacing ........ 6-38
Luggage strap holders .......................... 3-27MMain switch/steering lock........................ 3-2
Maintenance and lubrication, periodic .... 6-4 Maintenance,
emission control system ....................... 6-3
Matte color, caution ................................. 7-1
Model label .............................................. 9-1
Multi-function meter unit .......................... 3-8
NNeutral indicator light .............................. 3-4OOil level warning light .............................. 3-4PParking .................................................... 5-4
Part locations .......................................... 2-1
Pass switch ........................................... 3-14RRear view mirrors .................................. 3-22SSafety information ................................... 1-1
Seats ..................................................... 3-20
Shifting .................................................... 5-2
Shift pedal ............................................. 3-16
Shift timing indicator light ........................ 3-7
Shock absorber assembly, adjusting .... 3-25
Sidestand .............................................. 3-28
Sidestand, checking and lubricating...... 6-31
Spark plugs, checking ........................... 6-12
Specifications .......................................... 8-1
Starting the engine .................................. 5-1
Start switch............................................ 3-15
Steering, checking................................. 6-32
Storage.................................................... 7-4
Supporting the motorcycle .................... 6-39
Swingarm pivots, lubricating ................. 6-31TTail/brake light ....................................... 6-37
U1JSE0E0.book Page 1 Wednesday, July 27, 2011 10:34 AM