engine YAMAHA XV1600A 2002 User Guide

INSTRUMENT AND CONTROL FUNCTIONS
3-11
3
EAU03050
Fuel cock The fuel cock supplies fuel from the
tank to the carburetor while filtering it
also.
The fuel cock has three positions:
OFF
With the lever in this position, fuel will
not flow. Always return the lever to this
position when the engine is not run-
ning.ON
With the lever in this position, fuel flows
to the carburetor. Normal riding is done
with the lever in this position.RES
This indicates reserve. If you run out of
fuel while riding, move the lever to this
position. Fill the tank at the first oppor-
tunity. Be sure to set the lever back to
“ON” after refueling!1. Pointed end positioned over “OFF”OFF: closed position
1. Pointed end positioned over “ON”ON: normal position
1. Pointed end positioned over “RES”RES: reserve position
E_5JA.book Page 11 Saturday, August 18, 2001 3:52 PM

INSTRUMENT AND CONTROL FUNCTIONS
3-12
3
EAU04038
Starter (choke) knob “” Starting a cold engine requires a richer
air-fuel mixture, which is supplied by
the starter (choke).
Move the knob in direction
a to turn on
the starter (choke).
Move the knob in direction
b to turn off
the starter (choke).
EAU03372
Locking the steering with a
padlock In addition to the main switch/steering
lock, there are brackets on the right
side of the steering head pipe for lock-
ing the steering with a padlock. To do
so, turn the handlebar until the holes in
the two brackets are aligned, and then
lock the steering with a suitable
padlock.
EAU03785*
Rider seat To remove the rider seat
1. Insert the key into the main switch,
and then turn it counterclockwise
to “OPEN”.NOTE:_ Do not push inward when turning the
key. _2. Pull the rider seat off.
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INSTRUMENT AND CONTROL FUNCTIONS
3-16
3
EW000044
WARNING
@ The motorcycle must not be ridden
with the sidestand down, or if the
sidestand cannot be properly
moved up (or does not stay up), oth-
erwise the sidestand could contact
the ground and distract the opera-
tor, resulting in a possible loss of
control. Yamaha’s ignition circuit
cut-off system has been designed to
assist the operator in fulfilling the
responsibility of raising the side-
stand before starting off. Therefore,
check this system regularly as de-
scribed below and have a Yamaha
dealer repair it if it does not function
properly. @
EAU03720
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
lever is pulled, but the sidestand is
still down.


It cuts the running engine when
the transmission is in gear and the
sidestand is moved down.
Periodically check the operation of the
ignition circuit cut-off system according
to the following procedure.
EW000045
WARNING
_ If a malfunction is noted, have a
Yamaha dealer check the system
before riding. _
E_5JA.book Page 16 Saturday, August 18, 2001 3:52 PM

INSTRUMENT AND CONTROL FUNCTIONS
3-17
3
CD-01E
With the engine turned off:
1. Move the sidestand down.
2. Make sure that the engine stop switch is set to “”.
3. Turn the key to “ON”.
4. Shift the transmission into the neutral position.
5. Push the start switch.
Does the engine start?
The neutral switch may be defective.
The motorcycle should not be ridden until
checked by a Yamaha dealer.
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 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.
NO
NOTE:This check is most reliable if performed with
a warmed-up engine.
YESYES NO
The system is OK.
The motorcycle can be ridden.
YES NO
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4-1
4
EAU01114
4-PRE-OPERATION CHECKSThe condition of a vehicle is the owner’s responsibility. Vital components can start to deteriorate quickly and unexpectedly,
even if the vehicle remains unused (for example, as a result of exposure to the elements). Any damage, fluid leakage or loss
of tire air pressure could have serious consequences. Therefore, it is very important, in addition to a thorough visual inspec-
tion, to check the following points before each ride.
EAU03439
Pre-operation check list
CO-01E
ITEM CHECKS PAGE
FuelCheck fuel level in fuel tank.
Refuel if necessary.
Check fuel line for leakage.3-9–3-10
Engine oilCheck oil level in engine.
If necessary, add recommended oil to specified level.
Check vehicle for oil leakage.6-8–6-11
Front brakeCheck operation.
If soft or spongy, have Yamaha dealer bleed hydraulic system.
Check lever free play.
Adjust if necessary.
Check fluid level in reservoir.
If necessary, add recommended brake fluid to specified level.
Check hydraulic system for leakage.6-22, 6-23–6-26
Rear brakeCheck operation.
If soft or spongy, have Yamaha dealer bleed hydraulic system.
Check fluid level in reservoir.
If necessary, add recommended brake fluid to specified level.
Check hydraulic system for leakage.6-22–6-26
ClutchCheck operation.
Lubricate cable if necessary.
Check lever free play.
Adjust if necessary.6-21, 6-30
Throttle gripMake sure that operation is smooth.
Check free play.
If necessary, have Yamaha dealer make adjustment or lubricate.6-17
E_5JA.book Page 1 Saturday, August 18, 2001 3:52 PM

OPERATION AND IMPORTANT RIDING POINTS
5
Starting the engine ............................................................................ 5-1
Starting a warm engine ..................................................................... 5-3
Shifting .............................................................................................. 5-3
Recommended shift points (for Switzerland only) ............................. 5-4
Tips for reducing fuel consumption ................................................... 5-4
Engine break-in ................................................................................. 5-5
Parking .............................................................................................. 5-6
E_5JA.book Page 1 Saturday, August 18, 2001 3:52 PM

5-1
5
EAU00372
5-OPERATION AND IMPORTANT RIDING POINTS
EAU00373
WARNING
@

Become thoroughly familiar
with all operating controls and
their functions before riding.
Consult a Yamaha dealer re-
garding any control or function
that you do not thoroughly un-
derstand.


Never start the engine or oper-
ate it in a closed area for any
length of time. Exhaust fumes
are poisonous, and inhaling
them can cause loss of con-
sciousness and death within a
short time. Always make sure
that there is adequate ventila-
tion.


Before starting out, make sure
that the sidestand is up. If the
sidestand is not raised com-
pletely, it could contact the
ground and distract the opera-
tor, resulting in a possible loss
of control.
@
EAU03515*
Starting the engine In order for the ignition circuit cut-off
system to enable starting, one of the
following conditions must be met:

The transmission is in the neutral
position.


The transmission is in gear with
the clutch lever pulled and the
sidestand up.
EW000054
WARNING
@

Before starting the engine,
check the function of the igni-
tion circuit cut-off system ac-
cording to the procedure
described on page 3-16.


Never ride with the sidestand
down.
@
E_5JA.book Page 1 Saturday, August 18, 2001 3:52 PM

OPERATION AND IMPORTANT RIDING POINTS
5-2
5 1. Turn the fuel cock lever to “ON”.
2. Turn the key to “ON” and make
sure that the engine stop switch is
set to “”.
3. Shift the transmission into the neu-
tral position.
NOTE:@ When the transmission is in the neutral
position, the neutral indicator light
should be on, otherwise have a
Yamaha dealer check the electrical
circuit. @
4. Turn the starter (choke) on and
completely close the throttle. (See
page 3-12 for starter (choke)
operation.)
5. Start the engine by pushing the
start switch.NOTE:@ If the engine fails to start, release the
start switch, wait a few seconds, and
then try again. Each starting attempt
should be as short as possible to pre-
serve the battery. Do not crank the en-
gine more than 10 seconds on any one
attempt. @
6. After starting the engine, move the
starter (choke) knob back halfway.
ECA00055
CAUTION:@ For maximum engine life, always
warm the engine up before starting
off. Never accelerate hard when the
engine is cold! @7. When the engine is warm, turn the
starter (choke) off.NOTE:@ The engine is warm when it responds
normally to the throttle with the starter
(choke) turned off. @
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OPERATION AND IMPORTANT RIDING POINTS
5-3
5
EAU01258
Starting a warm engine Follow the same procedure as for start-
ing a cold engine with the exception
that the starter (choke) is not required
when the engine is warm.
EAU00423
Shifting Shifting gears lets you control the
amount of engine power available for
starting off, accelerating, climbing hills,
etc.
The gear positions are shown in the il-
lustration.NOTE:@ To shift the transmission into the neu-
tral position, press the shift pedal down
repeatedly until it reaches the end of its
travel, and then slightly raise it. @
EC000048
CAUTION:@

Even with the transmission in
the neutral position, do not
coast for long periods of time
with the engine off, and do not
tow the motorcycle for long dis-
tances. The transmission is
properly lubricated only when
the engine is running. Inade-
quate lubrication may damage
the transmission.


Always use the clutch while
changing gears to avoid dam-
aging the engine, transmission,
and drive train, which are not
designed to withstand the
shock of forced shifting.
@
1. Shift pedal
N. Neutral position
E_5JA.book Page 3 Saturday, August 18, 2001 3:52 PM

OPERATION AND IMPORTANT RIDING POINTS
5-4
5
EAU02941
Recommended shift points
(for Switzerland only) The recommended shift points during
acceleration are shown in the table be-
low.CF-01ENOTE:@ When shifting down two gears at a
time, reduce the speed accordingly
(e.g., down to 35 km/h when shifting
from 4th to 2nd gear). @
EAU00424
Tips for reducing fuel
consumption Fuel consumption depends largely on
your riding style. Consider the following
tips to reduce fuel consumption:

Thoroughly warm up the engine.


Turn the starter (choke) off as
soon as possible.


Shift up swiftly, and avoid high en-
gine speeds during acceleration.


Do not rev the engine while shift-
ing down, and avoid high engine
speeds with no load on the engine.


Turn the engine off instead of let-
ting it idle for an extended length
of time (e.g., in traffic jams, at traf-
fic lights or at railroad crossings).
Shift point
(km/h)
1st→2nd
2nd→3rd
3rd→4th
4th→5th23
36
50
60
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