2007 YAMAHA XV1900A spark plugs

TABLE OF CONTENTSSAFETY INFORMATION ..................1-1
DESCRIPTION ..................................2-1
Left view ..........................................2-1
Right view ........................................2-2
Controls and instruments.................2-3
INSTRUMENT AND CONTROL
FUNCTIONS.......................................3-1
Immobilizer system .........................3-1
Main switch/steering lock ................3-2
Indicator and warning lights ............3-4
Multi-function meter unit .................3-5
Anti-theft alarm (optional) .............3-10
Handlebar switches ......................3-10
Clutch lever ...................................3-12
Shift pedal .....................................3-12
Brake lever ...................................3-12
Brake pedal ..................................3-13
Fuel tank cap ................................3-13
Fuel ...............................................3-14
Fuel tank breather hose ................3-15
Catalytic converter ........................3-15
Rider seat .....................................3-15
Helmet holder ...............................3-16
Adjusting the shock absorber
assembly ...................................3-17
EXUP system ...............................3-19
Sidestand ......................................3-19
Ignition circuit cut-off system ........3-20
Auxiliary DC connector .................3-22PRE-OPERATION CHECKS............. 4-1
Pre-operation check list .................. 4-2
OPERATION AND IMPORTANT
RIDING POINTS................................. 5-1
Starting the engine ......................... 5-1
Shifting ........................................... 5-2
Tips for reducing fuel
consumption ............................... 5-3
Engine break-in .............................. 5-3
Parking ........................................... 5-4
PERIODIC MAINTENANCE AND
MINOR REPAIR................................. 6-1
Owner’s tool kit ............................... 6-1
Periodic maintenance and
lubrication chart .......................... 6-2
Checking the spark plugs ............... 6-6
Engine oil and oil filter cartridge ..... 6-7
Transfer case oil ........................... 6-10
Air filter element ........................... 6-10
Checking the throttle cable
free play .................................... 6-11
Valve clearance ............................ 6-11
Tires ............................................. 6-11
Cast wheels .................................. 6-13
Clutch lever .................................. 6-14
Adjusting the rear brake light
switch ........................................ 6-14
Checking the front and rear
brake pads ................................ 6-14Checking the brake and clutch
fluid levels ................................. 6-15
Changing the brake and clutch
fluids ......................................... 6-16
Drive belt slack ............................ 6-17
Checking and lubricating the
cables ....................................... 6-17
Checking and lubricating the
throttle grip and cable ............... 6-18
Checking and lubricating the
brake and shift pedals .............. 6-18
Checking and lubricating the
brake and clutch levers ............ 6-19
Checking and lubricating the
sidestand .................................. 6-19
Lubricating the rear suspension ... 6-20
Checking the front fork ................. 6-20
Checking the steering .................. 6-21
Checking the wheel bearings ....... 6-21
Battery ......................................... 6-22
Replacing the fuses ..................... 6-23
Replacing a headlight bulb .......... 6-24
Tail/brake light ............................. 6-27
Replacing a turn signal light
bulb ........................................... 6-28
License plate light ........................ 6-28
Replacing an auxiliary light
bulb ........................................... 6-28
Supporting the motorcycle ........... 6-29
Troubleshooting ........................... 6-30
Troubleshooting chart .................. 6-31U5C4E1E0.book Page 1 Monday, November 13, 2006 1:14 PM

PERIODIC MAINTENANCE AND MINOR REPAIR
6-2
6
EAU17707
Periodic maintenance and lubrication chart NOTE:

The annual checks must be performed every year, except if a kilometer-based maintenance is performed in-
stead.


From 50000 km, repeat the maintenance intervals starting from 10000 km.


Items marked with an asterisk should be performed by a Yamaha dealer as they require special tools, data and technicalskills.
NO. ITEM CHECK OR MAINTENANCE JOBODOMETER READING (× 1000 km)
ANNUAL
CHECK
1 10203040
1*Fuel lineCheck fuel hoses for cracks or damage.√√√√ √
2*Spark plugsCheck condition.
Clean and regap.√√
Replace.√√
3*ValvesCheck valve clearance.
Adjust.√√
4*Air filter elementReplace.√
5*ClutchCheck operation, fluid level and vehicle for fluid leakage.√√√√√
6*Front brakeCheck operation, fluid level and vehicle for fluid leakage.√√√√√ √
Replace brake pads. Whenever worn to the limit
7*Rear brakeCheck operation, fluid level and vehicle for fluid leakage.√√√√√ √
Replace brake pads. Whenever worn to the limit
8*Brake hosesCheck for cracks or damage.√√√√ √
Replace. Every 4 years
9*WheelsCheck runout and for damage.√√√√
U5C4E1E0.book Page 2 Monday, November 13, 2006 1:14 PM

PERIODIC MAINTENANCE AND MINOR REPAIR
6-6
6
EAU19642
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.
NOTE:
If 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.
Specified spark plug:
NGK/DPR8EA-9
DENSO/X24EPR-U9
1. Spark plug gap
Spark plug gap:
0.8–0.9 mm (0.031–0.035 in)
Tightening torque:
Spark plug:
17.5 Nm (1.75 m·kgf, 12.7 ft·lbf)
U5C4E1E0.book Page 6 Monday, November 13, 2006 1:14 PM

PERIODIC MAINTENANCE AND MINOR REPAIR
6-31
6
EAU42600
Troubleshooting chart
WARNING
EWA10840
Keep away open flames and do not smoke while checking or working on the fuel system.
Check the fuel level in
the fuel tank.1. Fuel
There is enough fuel.
There is no fuel.
Check the compression.
Supply fuel.
The engine does not start.
Check the compression.
Operate the electric starter.2. Compression
There is compression.
There is no compression.
Check the ignition.
Have a Yamaha dealer
check the vehicle.
Remove the spark plugs
and check the electrodes.3. Ignition
Wipe off with a dry cloth and correct the
spark plug gaps, or replace the spark plugs.
Have a Yamaha dealer check the vehicle.
The engine does not start.
Have a Yamaha dealer
check the vehicle.
The engine does not start.
Check the battery.
Operate the electric starter.4. Battery
The engine turns over
quickly.
The engine turns over
slowly.
The battery is good.Check the battery lead connections,
and charge the battery if necessary.
DryWet
Operate the electric starter.
U5C4E1E0.book Page 31 Monday, November 13, 2006 1:14 PM

MOTORCYCLE CARE AND STORAGE
7-4
73. Perform the following steps to pro-
tect the cylinders, piston rings, etc.
from corrosion.
a. Remove the spark plug caps
and spark plugs.
b. Pour a teaspoonful of engine oil
into each spark plug bore.
c. Install the spark plug caps onto
the spark plugs, and then place
the spark plugs on the cylinder
head so that the electrodes are
grounded. (This will limit spark-
ing during the next step.)
d. Turn the engine over several
times with the starter. (This will
coat the cylinder walls with oil.)
e. Remove the spark plug caps
from the spark plugs, and then
install the spark plugs and the
spark plug caps.
WARNING
EWA10950
To prevent damage or injury from
sparking, make sure to ground the
spark plug electrodes while turningthe engine over.4. Lubricate all control cables and the
pivoting points of all levers and
pedals as well as of the side-
stand/centerstand.
5. Check and, if necessary, correct
the tire air pressure, and then lift
the motorcycle so that both of its
wheels are off the ground. Alterna-
tively, turn the wheels a little every
month in order to prevent the tires
from becoming degraded in one
spot.
6. Cover the muffler outlet with a
plastic bag to prevent moisture
from entering it.
7. Remove the battery and fully
charge it. Store it in a cool, dry
place and charge it once a month.
Do not store the battery in an ex-
cessively cold or warm place [less
than 0 °C (30°F) or more than 30
°C (90°F)]. For more information
on storing the battery, see page
6-22.
NOTE:Make any necessary repairs beforestoring the motorcycle.
U5C4E1E0.book Page 4 Monday, November 13, 2006 1:14 PM

INDEXAAir filter element .................................... 6-10
Anti-theft alarm (optional)...................... 3-10
Auxiliary DC connector ......................... 3-22
Auxiliary light bulb, replacing ................ 6-28BBattery................................................... 6-22
Brake and clutch fluid levels,
checking ............................................. 6-15
Brake and clutch fluids, changing ......... 6-16
Brake and clutch levers, checking
and lubricating .................................... 6-19
Brake and shift pedals, checking
and lubricating .................................... 6-18
Brake lever ............................................ 3-12
Brake pedal ........................................... 3-13CCables, checking and lubricating .......... 6-17
Care ........................................................ 7-1
Catalytic converter ................................ 3-15
Clutch lever .................................. 3-12, 6-14DDimmer switch ...................................... 3-11
Drive belt slack...................................... 6-17EEngine break-in ....................................... 5-3
Engine oil and oil filter cartridge .............. 6-7
Engine stop switch ................................ 3-11
Engine trouble warning light.................... 3-4
EXUP system ........................................ 3-19FFront and rear brake pads, checking .... 6-14
Front fork, checking .............................. 6-20
Fuel ....................................................... 3-14Fuel consumption, tips for reducing........ 5-3
Fuel level warning light ........................... 3-4
Fuel tank breather hose........................ 3-15
Fuel tank cap ........................................ 3-13
Fuses, replacing ................................... 6-23
HHandlebar switches .............................. 3-10
Hazard switch ....................................... 3-11
Headlight bulb, replacing ...................... 6-24
Helmet holder ....................................... 3-16
High beam indicator light ........................ 3-4
Horn switch ........................................... 3-11IIdentification numbers ............................ 9-1
Ignition circuit cut-off system ................ 3-20
Immobilizer system ................................. 3-1
Immobilizer system indicator light........... 3-4
Indicator and warning lights .................... 3-4KKey identification number ....................... 9-1LLicense plate light ................................. 6-28MMain switch/steering lock........................ 3-2
Matte color, caution ................................ 7-1
Model label ............................................. 9-2
Multi-function meter unit ......................... 3-5NNeutral indicator light .............................. 3-4PParking ................................................... 5-4
Part locations .......................................... 2-1
Periodic maintenance and lubrication
chart ..................................................... 6-2Pre-operation check list........................... 4-2
RRear brake light switch, adjusting ......... 6-14
Rear suspension, lubricating ................. 6-20
Rider seat .............................................. 3-15SSafety information ................................... 1-1
Shifting .................................................... 5-2
Shift pedal ............................................. 3-12
Shock absorber assembly, adjusting .... 3-17
Sidestand .............................................. 3-19
Sidestand, checking and lubricating...... 6-19
Spark plugs, checking ............................. 6-6
Specifications .......................................... 8-1
Starting the engine .................................. 5-1
Start switch............................................ 3-11
Steering, checking................................. 6-21
Storage.................................................... 7-3
Supporting the motorcycle .................... 6-29TTail/brake light ....................................... 6-27
Throttle cable free play, checking ......... 6-11
Throttle grip and cable, checking
and lubricating .................................... 6-18
Tires ...................................................... 6-11
Tool kit..................................................... 6-1
Transfer case oil.................................... 6-10
Troubleshooting .................................... 6-30
Troubleshooting chart ........................... 6-31
Turn signal indicator lights ...................... 3-4
Turn signal light bulb, replacing ............ 6-28
Turn signal switch ................................. 3-11VValve clearance..................................... 6-11
U5C4E1E0.book Page 1 Monday, November 13, 2006 1:14 PM