brake fluid YAMAHA YBR250 2007 Owners Manual

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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2-2
2
DESCRIPTION
EAU10420
Right view1. Owner’s tool kit
2. Air filter element
3. Front brake fluid reservoir
4. Engine oil filter element
5. Engine oil filler cap
6. Brake pedal
7. Shock absorber assembly spring preload adjusting ring
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6-5
6
PERIODIC MAINTENANCE AND MINOR REPAIR
EAU18660
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The air filter needs more frequent service if you are riding in unusuall\
y wet or dusty areas.
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Hydraulic brake servicel
Regularly check and, if necessary, correct the brake fluid level.
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Every two years replace the internal components of the brake master cylinder and caliper, and change the brake
fluid.
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Replace the brake hoses every four years and if cracked or damaged.
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6-18
6
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.
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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.
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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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7-1MOTORCYCLE CARE AND STORAGE
7
EAU26001
CareWhile the open design of a motorcycle
reveals the attractiveness of the
technology, it also makes it more
vulnerable. Rust and corrosion can
develop even if high-quality components
are used. A rusty exhaust pipe may go
unnoticed on a car, however, it detracts
from the overall appearance of a
motorcycle. Frequent and proper care
does not only comply with the terms of
the warranty, but it will also keep your
motorcycle looking good, extend its life
and optimize its performance.
Before cleaning1. Cover the muffler outlet with a plastic bag after the engine has
cooled down.
2. Make sure that all caps and covers as well as all electrical couplers
and connectors, including the spark
plug cap, are tightly installed.
3. Remove extremely stubborn dirt, like oil burnt onto the crankcase,
with a degreasing agent and a
brush, but never apply such
products onto seals, gaskets, sprockets, the drive chain and
wheel axles. Always rinse the dirt
and degreaser off with water.
Cleaning
ECA10770
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Avoid using strong acidic wheel
cleaners, especially on spoked
wheels. If such products are
used on hard-to-remove dirt, do
not leave the cleaner on the
affected area any longer than
instructed. Also, thoroughly
rinse the area off with water,
immediately dry it, and then
apply a corrosion protection
spray.
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Improper cleaning can damage
windshields, cowlings, panels
and other plastic parts. Use only
a soft, clean cloth or sponge with
mild detergent and water to
clean plastic.
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Do not use any harsh chemical
products on plastic parts. Be
sure to avoid using cloths or
sponges which have been in
contact with strong or abrasive
cleaning products, solvent or thinner, fuel (gasoline), rust
removers or inhibitors, brake
fluid, antifreeze or electrolyte.
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Do not use high-pressure
washers or steam-jet cleaners
since they cause water seepage
and deterioration in the
following areas: seals (of wheel
and swingarm bearings, fork
and brakes), electric
components (couplers,
connectors, instruments,
switches and lights), breather
hoses and vents.
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For motorcycles equipped with
a windshield: Do not use strong
cleaners or hard sponges as
they will cause dulling or
scratching. Some cleaning
compounds for plastic may
leave scratches on the
windshield. Test the product on
a small hidden part of the
windshield to make sure that it
does not leave any marks. If the
windshield is scratched, use a
quality plastic polishing
compound after washing.
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8-2
SPECIFICATIONS
8
28/22 (1.273)
4th:
26/25 (1.040)
5th:
23/27 (0.852)
Chassis:Frame type:Double cradle
Caster angle: 26.50 º
Trail:
104.5 mm (4.11 in)Front tire:Type:Tubeless
Size:
100/80-17M/C (52S)
Manufacturer/model: PIRELLI/SPORT DEMONRear tire:Type:Tubeless
Size:
130/70-17M/C (62S)
Manufacturer/model:
PIRELLI/SPORT DEMONLoading:Maximum load:167 kg (368 b)
(Total weight of rider, passenger, cargo
and accessories)
Tire air pressure (measured on cold
tires):Loading condition:0-90 kg (0-198 lb)
Front:
225 kPa (33 psi) (2.25 kgf/cm
2)
Rear: 250 kPa (36 psi) (2.50 kgf/cm2)
Loading condition:
90-167 kg (198-368 lb)
Front:
225 kPa (33 psi) (2.25 kgf/cm2)
Rear: 250 kPa (36 psi) (2.50 kgf/cm2)
Front wheel:Wheel type:Cast wheel
Rim size:
17M/C x MT2.15Rear wheel:Wheel type:Cast wheel
Rim size:
17M/C x MT3.00Front brake:Type:Single disc brake
Operation: Right hand operation
Recommended fluid:
DOT 3 or 4
Rear brake:Type: Leading, trailing drum brake
Operation: Right foot operation
Recommended fluid:
DOT 3 or 4Front suspension:Type:Telescopic fork
Spring/shock absorber type:
Coil spring/oil damper
Wheel travel: 120.0 mm (4.72 in)Rear suspension:Type:Swingarm (link suspension)
Spring/shock absorber type:
Coil spring/oil damper
Wheel travel:
120.0 mm (4.72 in)Electrical system:Ignition system: Transistorized coil ignition (digital)
Charging system: AC magnetoBattery:Model: YTX77L-BS
Voltage, capacity:
12 V, 6.0 Ah
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