2006 YAMAHA XV1900A check engine

PERIODIC MAINTENANCE AND MINOR REPAIR
6-17
6 3. Note the position of the drive belt
with a force of 45 N (4.5 kgf, 10 lbf)
applied to the belt with a belt ten-
sion gauge as shown.
NOTE:A belt tension gauge is available at aYamaha dealer.
4. Calculate the drive belt slack by
subtracting the measurement not-
ed in step 2 from the measurement
noted in step 3.
5. If the drive belt slack is incorrect,
have a Yamaha dealer adjust it.
EAU23100
Checking and lubricating the
cables The operation of all control cables and
the condition of the cables should be
checked before each ride, and the ca-
bles and cable ends should be lubricat-
ed if necessary. If a cable is damaged
or does not move smoothly, have a
Yamaha dealer check or replace it.
WARNING
EWA10720
Damage to the outer sheath may in-
terfere with proper cable operation
and will cause the inner cable to
rust. Replace a damaged cable as
soon as possible to prevent unsafeconditions.
EAU23111
Checking and lubricating the
throttle grip and cable The operation of the throttle grip should
be checked before each ride. In addi-
tion, the cable should be lubricated at
the intervals specified in the periodic
maintenance chart.
1. Belt tension gaugeDrive belt slack:
7.5–13.0 mm (0.30–0.51 in)
Recommended lubricant:
Engine oil
U5C4E0E0.book Page 17 Monday, March 13, 2006 10:29 AM

PERIODIC MAINTENANCE AND MINOR REPAIR
6-20
6
EAU23271
Checking the front fork The condition and operation of the front
fork must be checked as follows at the
intervals specified in the periodic main-
tenance and lubrication chart.
To check the condition
WARNING
EWA10750
Securely support the vehicle so thatthere is no danger of it falling over.
Check the inner tubes for scratches,
damage and excessive oil leakage.
To check the operation
1. Place the vehicle on a level sur-
face and hold it in an upright posi-
tion.
2. While applying the front brake,
push down hard on the handlebars
several times to check if the front
fork compresses and rebounds
smoothly.
CAUTION:
ECA10590
If any damage is found or the front
fork does not operate smoothly,
have a Yamaha dealer check or re-pair it.
EAU23280
Checking the steering Worn or loose steering bearings may
cause danger. Therefore, the operation
of the steering must be checked as fol-
lows at the intervals specified in the pe-
riodic maintenance and lubrication
chart.
1. Place a stand under the engine to
raise the front wheel off the
ground.
WARNING
EWA10750
Securely support the vehicle so thatthere is no danger of it falling over.
2. Hold the lower ends of the front
fork legs and try to move them for-
ward and backward. If any free
play can be felt, have a Yamaha
dealer check or repair the steering.
U5C4E0E0.book Page 20 Monday, March 13, 2006 10:29 AM

PERIODIC MAINTENANCE AND MINOR REPAIR
6-29
6
EAU24350
Supporting the motorcycle Since this model is not equipped with a
centerstand, follow these precautions
when removing the front and rear
wheel or performing other maintenance
requiring the motorcycle to stand up-
right. Check that the motorcycle is in a
stable and level position before starting
any maintenance. A strong wooden
box can be placed under the engine for
added stability.
To service the front wheel
1. Stabilize the rear of the motorcycle
by using a motorcycle stand or, if
an additional motorcycle stand is
not available, by placing a jack un-
der the frame in front of the rear
wheel.
2. Raise the front wheel off the
ground by using a motorcycle
stand.
To service the rear wheel
Raise the rear wheel off the ground by
using a motorcycle stand or, if a motor-
cycle stand is not available, by placinga jack either under each side of the
frame in front of the rear wheel or under
each side of the swingarm.
EAU25850
Troubleshooting Although Yamaha motorcycles receive
a thorough inspection before shipment
from the factory, trouble may occur dur-
ing operation. Any problem in the fuel,
compression, or ignition systems, for
example, can cause poor starting and
loss of power.
The following troubleshooting chart
represents a quick and easy procedure
for checking these vital systems your-
self. However, should your motorcycle
require any repair, take it to a Yamaha
dealer, whose skilled technicians have
the necessary tools, experience, and
know-how to service the motorcycle
properly.
Use only genuine Yamaha replace-
ment parts. Imitation parts may look like
Yamaha parts, but they are often inferi-
or, have a shorter service life and can
lead to expensive repair bills.
U5C4E0E0.book Page 29 Monday, March 13, 2006 10:29 AM

PERIODIC MAINTENANCE AND MINOR REPAIR
6-30
6
EAU25891
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
Open the throttle halfway and operate
the electric starter.
U5C4E0E0.book Page 30 Monday, March 13, 2006 10:29 AM

INDEXAAir filter element ...................................... 6-9
Anti-theft alarm (optional)........................ 3-9
Auxiliary DC connector ......................... 3-21
Auxiliary light bulb, replacing ................ 6-28BBattery................................................... 6-21
Brake and clutch fluid levels,
checking ............................................. 6-15
Brake and clutch fluids, changing ......... 6-16
Brake and clutch levers,
checking and lubricating ..................... 6-18
Brake and shift pedals,
checking and lubricating ..................... 6-18
Brake lever ............................................ 3-11
Brake pedal ........................................... 3-12CCables, checking and lubricating .......... 6-17
Care ........................................................ 7-1
Catalytic converter ................................ 3-14
Clutch lever .................................. 3-11, 6-13DDimmer switch ...................................... 3-10
Drive belt slack...................................... 6-16EEngine break-in ....................................... 5-3
Engine oil and oil filter cartridge .............. 6-6
Engine stop switch ................................ 3-10
Engine trouble warning light.................... 3-4
EXUP system ........................................ 3-18FFront and rear brake pads, checking .... 6-14
Front fork, checking .............................. 6-20
Fuel ....................................................... 3-13Fuel consumption, tips for reducing........ 5-3
Fuel level warning light ........................... 3-4
Fuel tank breather hose........................ 3-14
Fuel tank cap ........................................ 3-12
Fuses, replacing ................................... 6-23
HHandlebar switches .............................. 3-10
Hazard switch ....................................... 3-10
Headlight bulb, replacing ...................... 6-24
Helmet holder ....................................... 3-15
High beam indicator light ........................ 3-4
Horn switch ........................................... 3-10IIdentification numbers ............................ 9-1
Ignition circuit cut-off system ................ 3-19
Immobilizer system ................................. 3-1
Immobilizer system indicator light........... 3-4
Indicator and warning lights .................... 3-3KKey identification number ....................... 9-1LLicense plate light ................................. 6-28MMain switch/steering lock........................ 3-2
Model label ............................................. 9-2
Multi-function meter unit ......................... 3-5NNeutral indicator light .............................. 3-3PParking ................................................... 5-4
Part locations .......................................... 2-1
Periodic maintenance and lubrication
chart ..................................................... 6-2
Pre-operation check list .......................... 4-2
RRear brake light switch, adjusting ......... 6-14
Rear suspension, lubricating ................. 6-19
Rider seat .............................................. 3-14SSafety information ................................... 1-1
Shifting .................................................... 5-2
Shift pedal ............................................. 3-11
Shock absorber assembly, adjusting .... 3-16
Sidestand .............................................. 3-18
Sidestand, checking and lubricating...... 6-19
Spark plugs, checking ............................. 6-5
Specifications .......................................... 8-1
Starting the engine .................................. 5-1
Start switch............................................ 3-10
Steering, checking................................. 6-20
Storage.................................................... 7-3
Supporting the motorcycle .................... 6-29TTail/brake light ....................................... 6-27
Throttle cable free play, checking ......... 6-10
Throttle grip and cable, checking
and lubricating .................................... 6-17
Tires ...................................................... 6-10
Tool kit..................................................... 6-1
Transfer case oil...................................... 6-9
Troubleshooting .................................... 6-29
Troubleshooting chart ........................... 6-30
Turn signal indicator lights ...................... 3-3
Turn signal light bulb, replacing ............ 6-27
Turn signal switch ................................. 3-10VValve clearance..................................... 6-10
Vehicle identification number .................. 9-1
U5C4E0E0.book Page 1 Monday, March 13, 2006 10:29 AM