Page 83 of 124
Periodic maintenance and adjustment7-13
1
2
3
4
5
678
9
10
11
12
4. If the engine oil is at or below the
minimum level mark, add sufficient
oil of the recommended type to
raise it to the correct level.
TIPCheck the oil filler cap O-ring for dam-age, and replace it if necessary.
To change the engine oil (and oil fil-
ter cartridge)1. Remove cowling A and panel B. (See page 7-9.)
2. Start the engine, warm it up for several minutes, and then turn it off.
3. Place an oil pan under the engine to collect the used oil.
4. Remove the engine oil filler cap, the engine oil drain bolt and its
gasket to drain the oil from the
crankcase.
TIPSkip steps 5–7 if the oil filter cartridge isnot being replaced.
5. Remove the oil filter cartridge with an oil filter wrench.
1. Engine oil level check window
2. Maximum level mark
3. Minimum level mark
2
3
1
1. Engine oil filler cap
1
1. Engine oil drain bolt
2. Gasket
12
BX4-9-E2.book 13 ページ 2018年9月6日 木曜日 午後4時39分
Page 95 of 124

Periodic maintenance and adjustment7-25
1
2
3
4
5
678
9
10
11
12
Rear brake
As the brake pads wear, it is normal for
the brake fluid level to gradually go
down.
A low brake fluid level may indicate
worn brake pads or brake system
leakage; therefore, be sure to
check the brake pads for wear and
the brake system for leakage.
If the brake fluid level goes down
suddenly, have a Yamaha dealer
check the cause before further rid-
ing.WARNING
EWA15991
Improper maintenance can result in
loss of braking ability. Observe
these precautions:
Insufficient brake fluid may al-
low air to enter the brake sys-
tem, reducing braking
performance.
Clean the filler cap before re-
moving. Use only DOT 4 brake
fluid from a sealed container.
Use only the specified brake flu-
id; otherwise, the rubber seals
may deteriorate, causing leak-
age.
Refill with the same type of
brake fluid. Adding a brake fluid
other than DOT 4 may result in a
harmful chemical reaction.
Be careful that water does not
enter the brake fluid reservoir
when refilling. Water will signifi-
cantly lower the boiling point of
the fluid and may result in vaporlock.
EAU22734
Changing the brake fluidHave a Yamaha dealer change the
brake fluid every 2 years. In addition,
have the seals of the master cylinders
and brake calipers, as well as the brake
hoses replaced at the intervals listed
below or sooner if they are damaged or
leaking.
Brake seals: every 2 years
Brake hoses: every 4 years
1. Minimum level mark
1
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Page 111 of 124

Motorcycle care and storage
8-2
1
2
3
4
5
6
789
10
11
12
gasoline, rust removers, brake
fluid, or antifreeze, etc.
Before washing 1. Park the vehicle out of direct sun- light and allow it to cool. This will
help avoid water spots.
2. Make sure all caps, covers, electri- cal couplers and connectors are
tightly installed.
3. Cover the muffler end with a plas- tic bag and a strong rubber band.
4. Pre-soak stubborn stains like in- sects or bird droppings with a wet
towel for a few minutes.
5. Remove road grime and oil stains with a quality degreasing agent
and a plastic-bristle brush or
sponge. NOTICE: Do not use de-
greasing agent on areas requir-
ing lubrication such as seals,
gaskets, and wheel axles. Fol-
low product instructions.
[ECA26290]
Washing 1. Rinse off any degreaser and spray down the vehicle with a garden
hose. Use only enough pressure to do the job. Avoid spraying water
directly into the muffler, instrument
panel, air inlet, or other inner areas
such as underseat storage com-
partments.
2. Wash the vehicle with a quality au- tomotive-type detergent mixed
with cool water and a soft, clean
towel or sponge. Use an old tooth-
brush or plastic-bristle brush for
hard-to-reach places. NOTICE:
Use cold water if the vehicle has
been exposed to salt. Warm wa-
ter will increase salt’s corrosive
properties.
[ECA26301]
3. For windshield-equipped vehicles: Clean the windshield with a soft
towel or sponge dampened with
water and a pH neutral detergent.
If necessary, use a high-quality
windshield cleaner or polish for
motorcycles. NOTICE: Never use
any strong chemicals to clean
the windshield. Additionally,
some cleaning compounds for
plastic may scratch the wind-
shield, so be sure to test all
cleaning products before gener-
al application.
[ECA26310]
4. Rinse off thoroughly with clean wa- ter. Be sure to remove all deter-
gent residues, as they can be
harmful to plastic parts.
After washing 1. Dry the vehicle with a chamois or absorbent towel, preferably micro-
fiber terrycloth.
2. For drive chain-equipped models: Dry and then lubricate the drive
chain to prevent rust.
3. Use a chrome polish to shine chrome, aluminum, and stainless
steel parts. Often the thermally in-
duced discoloring of stainless steel
exhaust systems can be removed
through polishing.
4. Apply a corrosion protection spray on all metal parts including chrome
or nickel-plated surfaces.
WARNING! Do not apply
silicone or oil spray to seats,
hand grips, rubber foot pegs or
tire treads. Otherwise these
parts will become slippery,
which could cause loss of con-
trol. Thoroughly clean the sur-
faces of these parts before
BX4-9-E2.book 2 ページ 2018年9月6日 木曜日 午後4時39分
Page 115 of 124

9-1
1
2
3
4
5
6
7
8910
11
12
Specifications
EAU84922
Dimensions:Overall length:2055 mm (80.9 in)
Overall width: 690 mm (27.2 in)
Overall height: 1150 mm (45.3 in)
Seat height:
855 mm (33.7 in)
Wheelbase: 1405 mm (55.3 in)
Ground clearance: 130 mm (5.12 in)
Minimum turning radius:
3.3 m (10.83 ft)Weight:Curb weight:200 kg (441 lb)Engine:Combustion cycle:4-stroke
Cooling system: Liquid cooled
Valve train:
DOHC
Cylinder arrangement: Inline
Number of cylinders: 4-cylinder
Displacement:
998 cm
3
Bore × stroke:79.0 × 50.9 mm (3.11 × 2.00 in) Starting system:
Electric starter
Engine oil:Recommended brand:
Type:Full synthetic
SAE viscosity grades: 10W-40, 15W-50
Recommended engine oil grade:
API service SG type or higher, JASO stan-
dard MA
Engine oil quantity:
Oil change:3.90 L (4.12 US qt, 3.43 Imp.qt)
With oil filter removal:
4.10 L (4.33 US qt, 3.61 Imp.qt)Coolant quantity:Coolant reservoir (up to the maximum level
mark): 0.25 L (0.26 US qt, 0.22 Imp.qt)
Radiator (including all routes): 2.25 L (2.38 US qt, 1.98 Imp.qt)Fuel:Recommended fuel:Premium unleaded gasoline (Gasohol
[E10] acceptable)
Fuel tank capacity: 17 L (4.5 US gal, 3.7 Imp.gal)
Fuel reserve amount: 3.0 L (0.79 US gal, 0.66 Imp.gal)
Fuel injection:Throttle body:ID mark:2CR4 10Drivetrain:Gear ratio: 1st:
2.600 (39/15)
2nd: 2.176 (37/17)
3rd: 1.842 (35/19)
4th:
1.579 (30/19)
5th: 1.381 (29/21)
6th: 1.250 (30/24)Front tire:Type: Tubeless
Size: 120/70ZR17M/C (58W)
Manufacturer/model:
BRIDGESTONE/BATTLAX RACING
STREET RS10FRear tire:Type:Tubeless
Size: 190/55ZR17M/C (75W)
Manufacturer/model:
BRIDGESTONE/BATTLAX RACING
STREET RS10R
BX4-9-E2.book 1 ページ 2018年9月6日 木曜日 午後4時39分