2007 YAMAHA YBR250 checking oil

TABLE OF CONTENTESSAFETY INFORMATION .................... 1-1
DESCRIPTION ................................... 2-1Left 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 - 2
Tachometer .................................... 3 - 3
Multi-function display ................... 3 - 3
Handlebar switches ...................... 3 - 4
Clutch lever ................................... 3 - 5
Shift pedal ..................................... 3 - 6
Brake lever .................................... 3 - 6
Brake pedal ................................... 3 - 6
Fuel tank cap ................................. 3 - 7
Fuel ................................................ 3 - 7
Catalytic converter ........................ 3 - 8
Seat ................................................ 3 - 9
Helmet holder ................................ 3 - 9
Storage compartment .................3-10
Adjusting the shock aborber
assemblies ............................... 3-10
Luggage strap holders ...............3-11
Sidestand ..................................... 3-11
Ignition circuit cut-off system .....3-12 PRE-OPERATION CHECKS .............. 4-1
Pre-operation check list ............... 4 - 2
OPERATION AND IMPORTANT
RIDING POINTS ................................. 5-1 Starting the engine ....................... 5 - 1
Shifting ........................................... 5 - 2
Tips for reducing fuel
consumption .............................. 5 - 3
Engine break-in ............................ 5 - 3
Parking .......................................... 5 - 4
PERIODIC MAINTENANCE AND
MINOR REPAIR .................................. 6-1 Owner’s tool kit .............................. 6 - 1
Periodic maintenance and lubrication chart ......................... 6 - 2
Removing and installing the cowling and panels ................... 6 - 6
Checking the spark plug .............. 6 - 7
Engine oil and oil filter element ... 6-8
Cleaning the air filter element ... 6-11
Checking the engine idling
speed ........................................ 6-12
Checking the throttle cable free play .................................... 6-12
Valve clearance .. ........................6-12
Tires ............................................. 6-13
Cast wheels ................................. 6-15
Adjusting the clutch lever free play .................................... 6-15Adjusting 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 ...........6-18
Drive chain slack ........................6-19
Cleaning and lubricating the
drive chain ............................... 6-20
Checking and lubricating the cables ....................................... 6-21
Checking and lubricating the throttle grip and cable .............6-21
Checking and lubricating the
brake and clutch levers ...........6-21
Checking and lubricating the brake and shift pedals ............6-22
Checking and lubricating the sidestand .................................. 6-22
Lubricating the rear
suspension .............................. 6-23
Checking the front fork ...............6-23
Checking the steering ................6-24
Checking the wheel bearings ....6-24
Battery .......................................... 6-24
Replacing the fuses ....................6-26
Replacing the headlight bulb ....6-27
Replacing a turn signal light bulb or the tail/brake light bulb .......6-28
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6-8
6
PERIODIC MAINTENANCE AND MINOR REPAIRSpecified spark plug:NGK / DR8EATo install the spark plug
1. Measure the spark plug gap with a wire thickness gauge and, if
necessary, adjust the gap to
specification.1. Spark plug gapSpark plug gap:0.6~0.7mm (0.024-0.028 in)2. Clean the surface of the spark plug
gasket and its mating surface, and
then wipe off any grime from the
spark plug threads.
3. Install the spark plug with the spark plug wrench, and then
tighten it to the specified torque. Tightening torque:
Spark plug:17.5 Nm (1.75 m.kgf, 13 ft.lbt)
If a torque wrench is not available when
installing a spark plug, a good estimate
of the correct torque is 1/4-1/2 turn past
finger tight. However, the spark plug
should be tightened to the specified
torque as soon as possible.4. Install the spark plug cap.
5. Install the cowling.
EAU37801
Engine oil and oil filter
elementThe engine oil level should be checked
before each ride. In addition, the oil must
be changed and the oil filter element
replaced at the intervals specified in the
General periodic maintenance and
lubrication chart.
To check the engine oil level 1. Place the vehicle on a level surface and hold it in an upright
position.Make sure that the vehicle is positioned
straight up when checking the oil level.
A slight tilt to the side can result in a
false reading.2. Start the engine, warm it up forseveral minutes, and then turn it
off.
3. Wait a few minutes until the oil settles, and then check the oil level
through the check window located
at the bottom-right side of the
crankcase.
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6-10
6
PERIODIC MAINTENANCE AND MINOR REPAIR
2
2
1
1. Oil filter element
2. O-ringMake sure that the O-rings are properly
seated.7. Install the oil filter element coverby installing the bolts, then
tightening them to the specified
torque.Tightening torque:Oil filter element cover bolt: 10 Nm (1,0 m.kgf, 7.4 ft.lbf)8. Install the engine oil drain bolt, and
then tighten it to the specified
torque.
9. Install the oil filter element drain bolt, and then tighten it to the
specified torque.
Tightening torque:Engine oil drain bolt: 20 Nm (2.0 m.kgf, 15 ft.lbf)
Oil filter element drain bolt: 7 Nm (0.7 m.kgf, 5.25 ft.lbf)10. Add the specified amount of the
recommended engine oil, and then
install and tighten the oil filler bolt.Recommended engine oil:See page 8-1
Oil quantity: Without oil filter element
replacement:1.35 L (1.43 US qt) (1.19
Imp.qt)
With oil filter element replacement:1.45 L (1.53 US qt) (1.28
Imp.qt)
ECA11620
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In order to prevent clutch
slippage (since the engine oil
also lubricates the clutch), do not
mix any chemical additives. Do
not use oils with a diesel
specification of “CD” or oils of a
higher quality than specified. In addition, do not use oils labeled
“ENERGY CONSERVING II” or
higher.
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Make sure that no foreign
material enters the crankcase.
11. Start the engine, and then let it idle
for several minutes while checking
it for oil leakage. If oil is leaking,
immediately turn the engine off and
check for the cause.
12. Turn the engine off, and then check the oil level and correct it if
necessary.
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PERIODIC MAINTENANCE AND MINOR REPAIR
EAU37001
Checking the front brake
fluid level
LOWERLOWER
UP
1
1. Minimum level markInsufficient brake fluid may allow air to
enter the brake system, possibly
causing it to become ineffective.
Before riding, check that the brake fluid
is above the minimum level mark and
replenish if necessary. A low brake fluid
level may indicate worn brake pads and/
or brake system leakage. If the brake
fluid level is low, be sure to check the
brake pads for wear and the brake
system for leakage.
Observe these precautions:l
When checking the fluid level, make
sure that the top of the master
cylinder is level by turning the
handlebars.
l
Use only the recommended quality
brake fluid, otherwise the rubber
seals may deteriorate, causing
leakage and poor braking
performance.Recommended brake fluid: DOT 4
If DOT 4 is not available, DOT 3 can be
used.l
Refill with the same type of brake
fluid. Mixing fluids may result in a
harmful chemical reaction and lead
to poor braking performance.
l
Be careful that water does not enter
the master cylinder when refilling.
Water will significantly lower the
boiling point of the fluid and may
result in vapor lock.
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Brake fluid may deteriorate painted
surfaces or plastic parts. Always
clean up spilled fluid immediately.
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As the brake pads wear, it is normal
for the brake fluid level to gradually
go down. However, if the brake fluid
level goes down suddenly, have a
Yamaha dealer check the cause.
EAU22720
Changing the brake fluidHave a Yamaha dealer change the brake
fluid at the intervals specified in the
NOTE after the periodic maintenance
and lubrication chart. In addition, have
the oil seals of the brake master cylinder
and caliper as well as the brake hose
replaced at the intervals listed below or
whenever they are damaged or leaking.l
Oil seals: Replace every two years.
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Brake hose: Replace every four
years.
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PERIODIC MAINTENANCE AND MINOR REPAIR
EAU23100
Checking and lubricating the
cablesThe operation of all control cables and
the condition of the cables should be
checked before each ride, and the
cables and cable ends should be
lubricated if necessary. If a cable is
damaged or does not move smoothly,
have a Yamaha dealer check or replace
it.Recommended lubricant:Engine oil
EWA10720
Damage to the outer sheath may
interfere with proper cable operation
and will cause the inner cable to rust.
Replace a damaged cable as soon as
possible to prevent unsafe
conditions.
EAU23111
Checking and lubricating the
throttle grip and cableThe operation of the throttle grip should
be checked before each ride. In addition,
the cable should be lubricated at the
intervals specified in the periodic
maintenance chart.
EAU23140
Checking and lubricating the
brake and clutch levers
1
2
1. Brake lever
2. Lubrication point1. Clutch lever
2. Lubrication pointThe operation of the brake and clutch
levers should be checked before each
ride, and the lever pivots should be
lubricated if necessary.
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PERIODIC MAINTENANCE AND MINOR REPAIR
EAU23250
Lubricating the rear
suspensionThe pivoting points of the rear
suspension must be lubricated at the
intervals specified in the periodic
maintenance and lubrication chart.Recommended lubricant:
Lithium-soap-based grease
(all-purpose grease)
EAU23271
Checking the front forkThe condition and operation of the front
fork must be checked as follows at the
intervals specified in the periodic
maintenance and lubrication chart.
To check the condition
EWA10750
Securely support the motorcycle so
that there is no danger of it falling
over.Check the inner tubes for scratches,
damage and excessive oil leakage.
To check the operation1. Place the motorcycle on a level surface and hold it in an upright
position.
2. While applying the front brake, push down hard on the handlebars
several times to check if the front
fork compresses and rebounds
smoothly.
ECA10590
If any damage is found or the front
fork does not operate smoothly, have
a Yamaha dealer check or repair it.
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