engine YAMAHA XV1900A 2006 User Guide

INSTRUMENT AND CONTROL FUNCTIONS
3-8
3
NOTE:Make sure there are no other immobi-
lizer keys close to the main switch, and
do not keep more than one immobilizer
key on the same key ring! Immobilizer
system keys may cause signal interfer-
ence, which may prevent the enginefrom starting.
2. If the engine starts, turn it off and
try starting the engine with the
standard keys.
3. If one or both of the standard keys
do not start the engine, take the
vehicle, the code re-registering
key and both standard keys to a
Yamaha dealer and have the stan-
dard keys re-registered.
If the odometer/tripmeter/clock display
indicates any error codes, note the
code number, and then have a Yamaha
dealer check the vehicle.CAUTION:
ECA11590
If the display indicates an error
code, the vehicle should be checked
as soon as possible in order to avoidengine damage.Brightness control mode
The brightness can be adjusted for the
following:


the multi-function meter unit panel
(item number “1”)


the LCD (item number “2”)


the speedometer, tachometer, and
the fuel gauge needles (item num-
ber “3”)
Select the brightness control mode as
follows.
1. Turn the key to “OFF”.
2. Push and hold the “SELECT”
switch.3. Turn the key to “ON”, and then re-
lease the “SELECT” switch after
five seconds.
Item number “1” is displayed.
4. Adjust the multi-function meter unit
panel brightness level by pushing
the “RESET” switch.
5. Push the “SELECT” switch to se-
lect the LCD.
Item number “2” is displayed.
Adjust the LCD brightness level by
pushing the “RESET” switch.
1. Multi-function meter unit panel
2. LCD
3. Speedometer needle
4. Tachometer needle
5. Fuel gauge needle
1. Multi-function meter unit panel
2. Item number
3. Brightness level
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INSTRUMENT AND CONTROL FUNCTIONS
3-10
3
EAU12345
Handlebar switches Left
Right
EAU40750
Dimmer “/”/Pass “” switch
Set this switch to “” for the high
beam and to “” for the low beam.
To flash the high beam, press on the
low-beam side “” of the dimmer
switch while the headlight is on low-
beam.
EAU12460
Turn signal switch “/”
To signal a right-hand turn, push this
switch to “”. To signal a left-hand
turn, push this switch to “”. When re-
leased, the switch returns to the center
position. To cancel the turn signal
lights, push the switch in after it has re-
turned to the center position.
EAU12500
Horn switch “”
Press this switch to sound the horn.
EAU12660
Engine stop switch “/”
Set this switch to “” before starting
the engine. Set this switch to “” to
stop the engine in case of an emergen-
cy, such as when the vehicle overturns
or when the throttle cable is stuck.
EAU12710
Start switch “”
Push this switch to crank the engine
with the starter.CAUTION:
ECA10050
See page 5-1 for starting instruc-tions prior to starting the engine.
EAU12733
Hazard switch “”
With the key in the “ON” or “” posi-
tion, use this switch to turn on the haz-
ard lights (simultaneous flashing of all
turn signal lights).
The hazard lights are used in case of
an emergency or to warn other drivers
when your vehicle is stopped where it
might be a traffic hazard.CAUTION:
ECA10061
Do not use the hazard lights for an
extended length of time with the en-
gine not running, otherwise the bat-tery may discharge.
1. Dimmer “/”/Pass “” switch
2. Turn signal switch “/”
3. Horn switch “”
1. Engine stop switch “/”
2. Hazard switch “”
3. Start switch “”U5C4E0E0.book Page 10 Monday, March 13, 2006 10:29 AM

INSTRUMENT AND CONTROL FUNCTIONS
3-11
3
EAU12820
Clutch lever The clutch lever is located at the left
handlebar grip. To disengage the
clutch, pull the lever toward the handle-
bar grip. To engage the clutch, release
the lever. The lever should be pulled
rapidly and released slowly for smooth
clutch operation.
The clutch lever is equipped with a
clutch switch, which is part of the igni-
tion circuit cut-off system. (See page
3-19.)
EAU12880
Shift pedal The shift pedal is located on the left
side of the engine and is used in com-
bination with the clutch lever when
shifting the gears of the 5-speed con-
stant-mesh transmission equipped on
this motorcycle.NOTE:Use your toes or heel to shift up andyour toes to shift down.
EAU12890
Brake lever The brake lever is located at the right
handlebar grip. To apply the front
brake, pull the lever toward the handle-
bar grip.
1. Clutch lever
1. Shift pedal
1. Brake lever
U5C4E0E0.book Page 11 Monday, March 13, 2006 10:29 AM

INSTRUMENT AND CONTROL FUNCTIONS
3-13
3
EAU13210
Fuel Make sure that there is sufficient fuel in
the tank. Fill the fuel tank to the bottom
of the filler tube as shown.
WARNING
EWA10880


Do not overfill the fuel tank, oth-
erwise it may overflow when the
fuel warms up and expands.


Avoid spilling fuel on the hot en-gine.
CAUTION:
ECA10070
Immediately wipe off spilled fuel
with a clean, dry, soft cloth, since
fuel may deteriorate painted surfac-es or plastic parts.
EAU13390
CAUTION:
ECA11400
Use only unleaded gasoline. The use
of leaded gasoline will cause severe
damage to internal engine parts,
such as the valves and piston rings,as well as to the exhaust system.
Your Yamaha engine has been de-
signed to use premium unleaded gaso-
line with a research octane number of
95 or higher. If knocking (or pinging) oc-curs, use a gasoline of a different
brand. Use of unleaded fuel will extend
spark plug life and reduce maintenance
costs.
1. Fuel tank filler tube
2. Fuel level
Recommended fuel:
PREMIUM UNLEADED GASOLINE
ONLY
Fuel tank capacity:
17.0 L (4.49 US gal) (3.74 Imp.gal)
Fuel reserve amount (when the fuel
level warning light comes on):
3.0 L (0.79 US gal) (0.66 Imp.gal)
U5C4E0E0.book Page 13 Monday, March 13, 2006 10:29 AM

INSTRUMENT AND CONTROL FUNCTIONS
3-14
3
EAU13410
Fuel tank breather hose Before operating the motorcycle:

Check the fuel tank breather hose
connection.


Check the fuel tank breather hose
for cracks or damage, and replace
it if damaged.


Make sure that the end of the fuel
tank breather hose is not blocked,
and clean it if necessary.
EAU13431
Catalytic converter This model is equipped with a catalytic
converter in the exhaust system.
WARNING
EWA10860
The exhaust system is hot after op-
eration. Make sure that the exhaust
system has cooled down before do-ing any maintenance work.CAUTION:
ECA10700
The following precautions must be
observed to prevent a fire hazard or
other damages.

Use only unleaded gasoline.
The use of leaded gasoline will
cause unrepairable damage to
the catalytic converter.


Never park the vehicle near pos-
sible fire hazards such as grass
or other materials that easily
burn.


Do not allow the engine to idletoo long.
EAU34042
Rider seat To remove the rider seat
1. Insert the key into the seat lock,
and then turn it counterclockwise.
2. While holding the key in that posi-
tion, lift the front of the seat up, and
then pull the seat off.
To install the rider seat
1. Insert the projection on the rear of
the seat into the seat holder as
shown.
1. Fuel tank breather hose
1. Seat lock
2. Unlock.
U5C4E0E0.book Page 14 Monday, March 13, 2006 10:29 AM

INSTRUMENT AND CONTROL FUNCTIONS
3-18
3
EAU15281
EXUP system This model is equipped with Yamaha’s
EXUP (EXhaust Ultimate Power valve)
system. This system boosts engine
power by means of a valve that regu-
lates the diameter of the exhaust pipe.
The EXUP system valve is constantly
adjusted in accordance with the engine
speed by a computer-controlled servo-
motor.CAUTION:
ECA10191


The EXUP system has been set
and extensively tested at the
Yamaha factory. Changing
these settings without sufficient
technical knowledge may result
in poor performance of or dam-
age to the engine.


If the EXUP system cannot be
heard when the main switch is
turned on, have a Yamaha deal-er check it.
EAU15301
Sidestand The sidestand is located on the left side
of the frame. Raise the sidestand or
lower it with your foot while holding the
vehicle upright.NOTE:The built-in sidestand switch is part of
the ignition circuit cut-off system, which
cuts the ignition in certain situations.
(See further down for an explanation ofthe ignition circuit cut-off system.)
WARNING
EWA10240
The vehicle must not be ridden with
the sidestand down, or if the side-
stand cannot be properly moved up
(or does not stay up), otherwise the
sidestand could contact the ground
and distract the operator, resulting
in a possible loss of control.
Yamaha’s ignition circuit cut-off
system has been designed to assist
the operator in fulfilling the respon-
sibility of raising the sidestand be-
fore starting off. Therefore, check
this system regularly as describedbelow and have a Yamaha dealer re-
pair it if it does not function proper-
ly.
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INSTRUMENT AND CONTROL FUNCTIONS
3-19
3
EAU15311
Ignition circuit cut-off system The ignition circuit cut-off system (com-
prising the sidestand switch, clutch
switch and neutral switch) has the fol-
lowing functions.

It prevents starting when the trans-
mission is in gear and the side-
stand is up, but the clutch lever is
not pulled.


It prevents starting when the trans-
mission is in gear and the clutch le-
ver is pulled, but the sidestand is
still down.


It cuts the running engine when the
transmission is in gear and the sid-
estand is moved down.
Periodically check the operation of the
ignition circuit cut-off system according
to the following procedure.WARNING
EWA10250
If a malfunction is noted, have a
Yamaha dealer check the system be-fore riding.
U5C4E0E0.book Page 19 Monday, March 13, 2006 10:29 AM

INSTRUMENT AND CONTROL FUNCTIONS
3-20
3
With the engine turned off:
1. Move the sidestand down.
2. Make sure that the engine stop switch is turned on.
3. Turn the key on.
4. Shift the transmission into the neutral position.
5. Push the start switch.
Does the engine start?
With the engine still running:
6. Move the sidestand up.
7. Keep the clutch lever pulled.
8. Shift the transmission into gear.
9. Move the sidestand down.
Does the engine stall?
After the engine has stalled:
10. Move the sidestand up.
11. Keep the clutch lever pulled.
12. Push the start switch.
Does the engine start?
The system is OK. The motorcycle can be ridden.
This check is most reliable if performed with
a warmed-up engine.The neutral switch may be defective.
The motorcycle should not be ridden until
checked by a Yamaha dealer.
The sidestand switch may be defective.
The motorcycle should not be ridden until
checked by a Yamaha dealer.
The clutch switch may be defective.
The motorcycle should not be ridden until
checked by a Yamaha dealer.
YES NO YES NO YES NONOTE:
U5C4E0E0.book Page 20 Monday, March 13, 2006 10:29 AM

INSTRUMENT AND CONTROL FUNCTIONS
3-21
3
EAU38350
Auxiliary DC connector A 12-V accessory connected to the
auxiliary DC connector under the rider
seat can be used when the key is in the
“ON” position.CAUTION:
ECA15310
The accessory connected to the
auxiliary DC connector should not
be used with the engine turned off,
and the load must never exceed 36
W (3 A), otherwise the battery maydischarge.
WARNING
EWA12531
To prevent electrical shock or short-
circuiting, make sure that the cap is
installed when the auxiliary DC con-nector is not being used.
1. Auxiliary DC connector
U5C4E0E0.book Page 21 Monday, March 13, 2006 10:29 AM

PRE-OPERATION CHECKS
4-2
4
EAU15603
Pre-operation check list
ITEM CHECKS PAGE
FuelCheck fuel level in fuel tank.
Refuel if necessary.
Check fuel line for leakage.3-13
Engine oilCheck oil level in oil tank.
If necessary, add recommended oil to specified level.
Check vehicle for oil leakage.6-6
Transfer case oilCheck vehicle for oil leakage. 6-9
Front brakeCheck operation.
If soft or spongy, have Yamaha dealer bleed hydraulic system.
Check brake pads for wear.
Replace if necessary.
Check fluid level in reservoir.
If necessary, add recommended brake fluid to specified level.
Check hydraulic system for leakage.6-14, 6-15
Rear brakeCheck operation.
If soft or spongy, have Yamaha dealer bleed hydraulic system.
Check brake pads for wear.
Replace if necessary.
Check fluid level in reservoir.
If necessary, add recommended brake fluid to specified level.
Check hydraulic system for leakage.6-14, 6-15
ClutchCheck operation.
If soft or spongy, have Yamaha dealer bleed hydraulic system.
Check fluid level in reservoir.
If necessary, add recommended fluid to specified level.
Check hydraulic system for leakage.6-13, 6-15
Throttle gripMake sure that operation is smooth.
Check cable free play.
If necessary, have Yamaha dealer adjust cable free play and lubricate cable and
grip housing.6-10, 6-17
U5C4E0E0.book Page 2 Monday, March 13, 2006 10:29 AM