2007 YAMAHA YBR250 Owners Manual

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INSTRUMENT AND CONTROL FUNCTIONSbelow and have a Yamaha dealer
repair it if it does not function
properly.
EAU15311
Ignition circuit cut-off systemThe ignition circuit cut-off system
(comprising the sidestand switch, clutch
switch and neutral switch) has the
following functions. It prevents starting when the transmission is in gear and the
sidestand is up, but the clutch lever
is not pulled.
 It prevents starting when the transmission 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.
EWA10250
If a malfunction is noted, have a
Yamaha dealer check the system
before riding.
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3-13
3
INSTRUMENT AND CONTROL FUNCTIONS
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 NO NOTE:
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4-1
4
PRE-OPERATION CHECKS
EAU15592
The 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 exposur\
e 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 inspection,
to check the following points before each ride.Pre-operation checks should be made each time the vehicle is used. Such an inspection can be accomplished in a very short
time; and the added safety it assures is more than worth the time involved.
EWA11150
If any item in the Pre-operation check list is not working properly, have it inspected and repaired before operating
the vehicle.
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4-2
4
PRE-OPERATION CHECKS
EAU15605
Pre-operation check list
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4-3
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PRE-OPERATION CHECKS
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5
OPERATION AND IMPORTANT RIDING POINTS
EAU15950
EWA10270
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Become thoroughly familiar
with all operating controls and
their functions before riding.
Consult a Yamaha dealer
regarding any control or function
that you do not thoroughly
understand.
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Never start the engine or operate
it in a closed area for any length
of time. Exhaust fumes are
poisonous, and inhaling them
can cause loss of
consciousness and death within
a short time. Always make sure
that there is adequate
ventilation.
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Before starting out, make sure
that the sidestand is up. If the
sidestand is not raised
completely, it could contact the
ground and distract the operator,
resulting in a possible loss of
control.
EAUW0090
Starting the engineIn order for the ignition circuit cut-off
system to enable starting, one of the
following conditions must be met:l
The transmission is in the neutral
position.
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The transmission is in gear with the
clutch lever pulled and the
sidestand up.
EWA10290
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Before starting the engine, check
the function of the ignition
circuit cut-off system according
to the procedure described on
page 3-12.
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Never ride with the sidestand
down.
1. Turn the key to “ON” and make sure
that the engine stop switch is set
to “
”.
ECAW0041
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The engine trouble warning light
should come on for a few
seconds, then go off. If the warning light does not go off,
ask a Yamaha dealer to check the
motorcycle.
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The speedometer needle will
sweep across the speed range
and then return to zero. The
tachometer needle will sweep
across the r/min range and then
return to zero. If either needle
does not sweep across their
ranges, ask a Yamaha dealer to
check the motorcycle.
2. Shift the transmission into the
neutral position.When the transmission is in the neutral
position, the neutral indicator light should
be on, otherwise have a Yamaha dealer
check the electrical circuit.3. Start the engine by pushing thestart switch.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
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OPERATION AND IMPORTANT RIDING POINTSpreserve the battery. Do not crank the
engine more than 10 seconds on any
one attempt.
ECA11040
For maximum engine life, never
accelerate hard when the engine is
cold!The engine is warm when it quickly
responds to the throttle.
EAU16671
ShiftingShifting gears lets you control the
amount of engine power available for
starting off, accelerating, climbing hills,
etc.
The gear positions are shown in the
illustration.
1 2 3 4 5
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1. Shift pedal
2. Neutral positionTo shift the transmission into the neutral
position, press the shift pedal down
repeatedly until it reaches the end of its
travel, and then slightly raise it.
ECA10260
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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 distances.
The transmission is properly
lubricated only when the engine
is running. Inadequate
lubrication may damage the
transmission.
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Always use the clutch while
changing gears to avoid
damaging the engine,
transmission, and drive train,
which are not designed to
withstand the shock of forced
shifting.
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5-3
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OPERATION AND IMPORTANT RIDING POINTS
EAU16810
Tips for reducing fuel
consumptionFuel consumption depends largely on
your riding style. Consider the following
tips to reduce fuel consumption:l
Shift up swiftly, and avoid high
engine speeds during acceleration.
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Do not rev the engine while shifting
down, and avoid high engine
speeds with no load on the engine.
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Turn the engine off instead of letting
it idle for an extended length of time
(e.g., in traffic jams, at traffic lights
or at railroad crossings).
EAU16841
Engine break-inThere is never a more important period
in the life of your engine than the period
between 0 and 1600 km (1000 mi). For
this reason, you should read the
following material carefully.
Since the engine is brand new, do not
put an excessive load on it for the first
1600 km (1000 mi). The various parts in
the engine wear and polish themselves
to the correct operating clearances.
During this period, prolonged full-throttle
operation or any condition that might
result in engine overheating must be
avoided.
EAU17100
0-1000 km (0-600 mi)
Avoid prolonged operation above 5000
r/min.
1000-1600 km (600-1000 mi)
Avoid prolonged operation above 6000
r/min.
ECA11150
After 1000 km (600 mi) of operation,
the engine oil must be changed, and
the oil filter element replaced.
1600 km (1000 mi) and beyond
The vehicle can now be operated
normally.
ECA10310
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Keep the engine speed out of the
tachometer red zone.
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If any engine trouble should
occur during the engine break-
in period, immediately have a
Yamaha dealer check the vehicle.
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