2011 YAMAHA YBR250 ignition

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
Main switch/steering lock ................3-1
Indicator and warning lights ............3-2
Speedometer ..................................3-3
Tachometer ....................................3-3
Multi-function display ......................3-3
Handlebar switches ........................3-5
Clutch lever .....................................3-6
Shift pedal .......................................3-6
Brake lever .....................................3-6
Brake pedal ....................................3-7
Fuel tank cap ..................................3-7
Fuel .................................................3-8
Catalytic converter ..........................3-9
Seat ..............................................3-10
Helmet holder ...............................3-10
Storage compartment ...................3-11
Adjusting the shock absorber
assemblies ................................3-11
Luggage strap holders ..................3-12
Sidestand ......................................3-12
Ignition circuit cut-off system ........3-13FOR YOUR SAFETY –
PRE-OPERATION CHECKS............. 4-1
OPERATION AND IMPORTANT
RIDING POINTS................................. 5-1
Starting the engine ......................... 5-1
Shifting ........................................... 5-2
Tips for reducing fuel
consumption ............................... 5-2
Engine break-in .............................. 5-3
Parking ........................................... 5-3
PERIODIC MAINTENANCE AND
ADJUSTMENT................................... 6-1
Owner’s tool kit ............................... 6-1
Periodic maintenance chart for
the emission control system ....... 6-2
General maintenance and
lubrication chart .......................... 6-3
Removing and installing the
cowling and panels ..................... 6-6
Checking the spark plug ................. 6-7
Engine oil and oil filter element ...... 6-9
Cleaning the air filter element ...... 6-11
Adjusting the engine idling
speed ........................................ 6-12
Checking the throttle cable free
play ........................................... 6-12
Valve clearance ............................ 6-13
Tires ............................................. 6-13
Cast wheels .................................. 6-15Adjusting the clutch lever free
play ........................................... 6-15
Adjusting the brake pedal position
and free play ............................. 6-16
Adjusting the rear brake light
switch ....................................... 6-17
Checking the front brake pads
and rear brake shoes ............... 6-17
Checking the front brake fluid
level .......................................... 6-18
Changing the brake fluid .............. 6-19
Drive chain slack .......................... 6-19
Cleaning and lubricating the
drive chain ................................ 6-21
Checking and lubricating the
cables ....................................... 6-21
Checking and lubricating the
throttle grip and cable ............... 6-22
Checking and lubricating the
brake and shift pedals .............. 6-22
Checking and lubricating the
brake and clutch levers ............ 6-23
Checking and lubricating the
sidestand .................................. 6-23
Lubricating the rear suspension ... 6-24
Checking the front fork ................. 6-24
Checking the steering .................. 6-25
Checking the wheel bearings ....... 6-25
Battery ......................................... 6-25
Replacing the fuses ..................... 6-27
Replacing the headlight bulb ....... 6-28U5D1E1E0.book Page 1 Friday, September 5, 2008 1:17 PM

INSTRUMENT AND CONTROL FUNCTIONS
3-1
3
EAU10460
Main switch/steering lock The main switch/steering lock controls
the ignition and lighting systems, and is
used to lock the steering. The various
positions are described below.
EAU10570
ON
All electrical circuits are supplied with
power; the meter lighting, taillight and
auxiliary light come on, and the engine
can be started. The key cannot be re-
moved.TIPThe headlight comes on automatically
when the engine is started and stays onuntil the key is turned to “OFF”.
EAU10661
OFF
All electrical systems are off. The key
can be removed.
WARNING
EWA10061
Never turn the key to “OFF” or
“LOCK” while the vehicle is moving.
Otherwise the electrical systems will
be switched off, which may result inloss of control or an accident.
EAU10691
LOCK
The steering is locked, and all electrical
systems are off. The key can be re-
moved.To lock the steering
1. Turn the handlebars all the way to
the left or right.
2. Push the key in from the “OFF” po-
sition, and then turn it to “LOCK”
while still pushing it.
3. Remove the key.
OFF ON
LOCK
1. Push.
2. Turn.
U5D1E1E0.book Page 1 Friday, September 5, 2008 1:17 PM

INSTRUMENT AND CONTROL FUNCTIONS
3-8
3
EAU13212
Fuel Make sure there is sufficient gasoline in
the tank.
WARNING
EWA10881
Gasoline and gasoline vapors are
extremely flammable. To avoid fires
and explosions and to reduce the
risk of injury when refueling, followthese instructions.
1. Before refueling, turn off the en-
gine and be sure that no one is sit-
ting on the vehicle. Never refuel
while smoking, or while in the vi-
cinity of sparks, open flames, or
other sources of ignition such as
the pilot lights of water heaters and
clothes dryers.
2. Do not overfill the fuel tank. Stop
filling when the fuel reaches the
bottom of the filler tube. Because
fuel expands when it heats up,
heat from the engine or the sun
can cause fuel to spill out of the
fuel tank.3. Wipe up any spilled fuel immedi-
ately. NOTICE: Immediately wipe
off spilled fuel with a clean, dry,
soft cloth, since fuel may deteri-
orate painted surfaces or plastic
parts.
[ECA10071]
4. Be sure to securely close the fuel
tank cap.
WARNING
EWA15151
Gasoline is poisonous and can
cause injury or death. Handle gaso-
line with care. Never siphon gaso-
line by mouth. If you should swallow
some gasoline or inhale a lot of gas-
oline vapor, or get some gasoline in
your eyes, see your doctor immedi-ately. If gasoline spills on your skin,
wash with soap and water. If gaso-
line spills on your clothing, change
your clothes.
EAU33500
NOTICE
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 regular unleaded gaso-
line with a research octane number of
91 or higher. If knocking (or pinging) oc-
curs, use a gasoline of a different brand
1. Fuel tank filler tube
2. Fuel level
Recommended fuel:
REGULAR UNLEADED GASOLINE
ONLY
Fuel tank capacity:
19.2 L (5.07 US gal, 4.22 Imp.gal)
Fuel reserve amount (when the fuel
level warning symbol comes on):
4.5 L (1.19 US gal, 0.99 Imp.gal)
U5D1E1E0.book Page 8 Friday, September 5, 2008 1:17 PM

INSTRUMENT AND CONTROL FUNCTIONS
3-12
3
WARNING
EWA10210
Always adjust both shock absorber
assemblies equally, otherwise poor
handling and loss of stability mayresult.
Adjust the spring preload as follows.
To increase the spring preload and
thereby harden the suspension, turn
the adjusting ring on each shock ab-
sorber assembly in direction (a). To de-
crease the spring preload and thereby
soften the suspension, turn the adjust-
ing ring on each shock absorber as-
sembly in direction (b).
Align the appropriate notch in the ad-
justing ring with the position indicator
on the shock absorber.
EAU36700
Luggage strap holders There are four luggage strap holders on
the bottom of the seat. To use the strap
holders, remove the seat, unhook the
straps from the hooks, and then install
the seat with the straps hanging out
from under the seat. (See page 3-10.)
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.TIPThe 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 described
Spring preload setting:
Minimum (soft):
1
Standard:
3
Maximum (hard):
5
1. Luggage strap holder
U5D1E1E0.book Page 12 Friday, September 5, 2008 1:17 PM

INSTRUMENT AND CONTROL FUNCTIONS
3-13
3 below and have a Yamaha dealer re-
pair it if it does not function proper-
ly.
EAU15314
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.
TIPThis check is most reliable if performedwith a warmed-up engine.
U5D1E1E0.book Page 13 Friday, September 5, 2008 1:17 PM

FOR YOUR SAFETY – PRE-OPERATION CHECKS
4-2
4
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.6-12, 6-22
Control cablesMake sure that operation is smooth.
Lubricate if necessary.6-21
Drive chainCheck chain slack.
Adjust if necessary.
Check chain condition.
Lubricate if necessary.6-19, 6-21
Wheels and tiresCheck for damage.
Check tire condition and tread depth.
Check air pressure.
Correct if necessary.6-13, 6-15
Brake and shift pedalsMake sure that operation is smooth.
Lubricate pedal pivoting points if necessary.6-22
Brake and clutch leversMake sure that operation is smooth.
Lubricate lever pivoting points if necessary.6-23
SidestandMake sure that operation is smooth.
Lubricate pivot if necessary.6-23
Chassis fastenersMake sure that all nuts, bolts and screws are properly tightened.
Tighten if necessary.—
Instruments, lights, signals
and switchesCheck operation.
Correct if necessary.—
Sidestand switch Check operation of ignition circuit cut-off system.
If system is not working correctly, have Yamaha dealer check vehicle.3-12 ITEM CHECKS PAGE
U5D1E1E0.book Page 2 Friday, September 5, 2008 1:17 PM

OPERATION AND IMPORTANT RIDING POINTS
5-1
5
EAU15951
Read the Owner’s Manual carefully to
become familiar with all controls. If
there is a control or function you do not
understand, ask your Yamaha dealer.
WARNING
EWA10271
Failure to familiarize yourself with
the controls can lead to loss of con-
trol, which could cause an accidentor injury.
EAUW0092
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 sid-
estand up.
See page 3-13 for more informa-
tion.
1. Turn the key to “ON” and make
sure that the engine stop switch is
set to“”.
The following warning lights and
indicator light should come on for a
few seconds, then go off.

Fuel level warning light


Coolant temperature warning
light


Engine trouble warning light


Immobilizer system indicator
light
NOTICE
ECA11831
If a warning or indicator light does
not go off, see page 3-2 for the corre-
sponding warning and indicatorlight circuit check.
2. Shift the transmission into the neu-
tral position. (See page 5-2.) The
neutral indicator light should come
on. If not, ask a Yamaha dealer to
check the electrical circuit.
3. Start the engine by pushing the
start switch. NOTICE: For maxi-
mum engine life, never acceler-
ate hard when the engine is
cold!
[ECA11041]
If the engine fails to start, release
the start switch, wait a few sec-
onds, and then try again. Each
starting attempt should be as short
as possible to preserve the bat-
tery. Do not crank the engine more
than 10 seconds on any one at-
tempt.
U5D1E1E0.book Page 1 Friday, September 5, 2008 1:17 PM

PERIODIC MAINTENANCE AND ADJUSTMENT
6-27
6
EAU23626
Replacing the fuses The main fuse and the fuse box, which
contains the fuses for the individual cir-
cuits, are located under the seat. (See
page 3-10.)
If a fuse is blown, replace it as follows.
1. Turn the key to “OFF” and turn off
the electrical circuit in question.
2. Remove the blown fuse, and then
install a new fuse of the specified
amperage. WARNING! Do not
use a fuse of a higher amperage
rating than recommended to
avoid causing extensive dam-
age to the electrical system and
possibly a fire.
[EWA15131]
3. Turn the key to “ON” and turn on
the electrical circuit in question to
check if the device operates.
4. If the fuse immediately blows
again, have a Yamaha dealer
check the electrical system.
1. Main fuse
2. Spare fuse
1. Fuse box cover
2. Headlight fuse
3. Signaling system fuse
4. Fuel injection and ignition fuse
5. Multi-function display backup fuse
6. Spare fuse
Specified fuses:
Main fuse:
20.0 A
Headlight fuse:
10.0 A
Signaling system fuse:
10.0 A
Ignition fuse:
10.0 A
Backup fuse:
10.0 A
U5D1E1E0.book Page 27 Friday, September 5, 2008 1:17 PM