Page 48 of 84

PERIODIC MAINTENANCE AND ADJUSTMENT
6-11
1
2
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56
7
8
93. Wait a few minutes until the oil set-
tles, remove the oil filler cap, wipe
the dipstick clean, insert it back
into the oil filler hole (without
screwing it in), and then remove it
again to check the oil level.
TIPThe engine oil should be between theminimum and maximum level marks.
4. If the engine oil is below the mini- mum level mark, add sufficient oil
of the recommended type to raise
it to the correct level.
5. Insert the dipstick into the oil filler
hole, and then tighten the oil filler
cap.
To change the engine oil and clean
the oil strainer 1. Start the engine, warm it up for several minutes, and then turn it
off.
2. Place an oil pan under the engine to collect the used oil.
3. Remove the engine oil filler cap and the engine oil drain bolts A
and B to drain the oil from the
crankcase. NOTICE: When re- moving the engine oil drain bolt
B, the O-ring, compression
spring, and oil strainer will fall
out. Take care not to lose these
parts.
[ECAT1022]
4. Clean the oil strainer with solvent,
and then check it for damage and
replace it if necessary.
5. Check the O-ring for damage and replace it if necessary.
6. Install the oil strainer, compression spring, O-ring and engine oil drain
bolt B.TIPMake sure that the O-ring is properlyseated.
7. Install engine oil drain bolt A, and then tighten both drain bolts to
1. Engine oil drain bolt A
1
1. Engine oil drain bolt B
2. O-ring
3. Compression spring
4. Oil strainer
1
1 2 4
3
Page 58 of 84

PERIODIC MAINTENANCE AND ADJUSTMENT
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EAU22582
Checking the brake fluid levelBefore riding, check that the brake fluid
is above the minimum level mark.
Check the brake fluid level with the top
of the reservoir level. Replenish the
brake fluid if necessary.
Front brakeRear brake
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 sealsmay 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.
NOTICE
ECA17641
Brake fluid may damage painted sur-
faces or plastic parts. Always cleanup spilled fluid immediately.
As the brake pads wear, it is normal for
the brake fluid level to gradually go
down. A low brake fluid level may indi-
cate worn brake pads and/or brake sys-
tem 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 riding.
1. Minimum level mark
1
1. Minimum level markSpecified brake fluid:
DOT 4
1
Page 75 of 84

8-1
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789
SPECIFICATIONS
EAU5091K
Dimensions:Overall length:2030 mm (79.9 in)
Overall width: 715 mm (28.1 in)
Overall height: 1295 mm (51.0 in)
Seat height:
795 mm (31.3 in)
Wheelbase: 1405 mm (55.3 in)
Ground clearance: 93 mm (3.66 in)
Minimum turning radius:
2100 mm (82.7 in)Weight:Curb weight:148 kg (326 lb)Engine:Engine type:Liquid cooled 4-stroke, SOHC
Cylinder arrangement: Single cylinder
Displacement:
125 cm
3
Bore × stroke:
52.0 × 58.7 mm (2.05 × 2.31 in)
Compression ratio: 11.0 : 1
Starting system:
Electric starter
Lubrication system: Wet sump
Engine oil:Type:
SAE 10W-40
Recommended engine oil grade: API service SG type or higher, JASO stan-
dard MA or MB
*Engine oil quantity: Periodic oil change:
0.95 L (1.00 US qt, 0.84 Imp.qt)Final transmission oil:Type:SAE 10W-30 type SE motor oil
Quantity:
0.20 L (0.21 US qt, 0.18 Imp.qt)Cooling system:Coolant reservoir capacity (up to the maxi-
mum level mark):0.25 L (0.26 US qt, 0.22 Imp.qt)
Radiator capacity (including all routes): 0.56 L (0.59 US qt, 0.49 Imp.qt)
Air filter:Air filter element:Oil-coated paper elementFuel:Recommended fuel:Regular unleaded gasoline
Fuel tank capacity:
7.4 L (1.96 US gal, 1.63 Imp.gal)Fuel injection:*Throttle body:ID mark:52S1 01Spark plug(s):Manufacturer/model:
NGK / CPR8EA
Spark plug gap: 0.8–0.9 mm (0.031–0.035 in)Clutch:Clutch type:
Dry, centrifugal automaticTransmission:Primary reduction ratio:1.000
Final drive:
Gear
Secondary reduction ratio: 8.787 (45 / 13 × 33 / 13)
Transmission type: V-belt automaticChassis:Frame type:Backbone
Caster angle: 26.00 °
–20 –10 0 1020 30 40 50 C
10 30 50 70 90 110
0 130 F
SAE 10W-30
SAE 15W-40SAE 20W-40SAE 20W-50
SAE 10W-40SAE 10W-50
Page 76 of 84

SPECIFICATIONS
8-2
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78
9
Trail:82 mm (3.2 in)Front tire:Type:Tubeless
Size: 120 / 70 - 13 M/C 53P
Manufacturer/model:
KENDA / K703FRear tire:Type:Tubeless
Size:
130 / 70 - 13 M/C 57P
Manufacturer/model: KENDA / K703Loading:Maximum load:
160 kg (353 lb)
* (Total weight of rider, passenger, cargo and accessories)Tire air pressure (measured on cold
tires):Loading condition:90 kg (198 lb)
Front:
200 kPa (2.00 kgf/cm
2, 29 psi)
Rear:
200 kPa (2.00 kgf/cm2, 29 psi)
Loading condition: 90 kg - maximum load
Front:
200 kPa (2.00 kgf/cm2, 29 psi) Rear:
225 kPa (2.25 kgf/cm
2, 33 psi)
Front wheel:Wheel type:Cast wheel
Rim size: J 13 × MT3.00Rear wheel:Wheel type:Cast wheel
Rim size: J 13 × MT3.5Front brake:Type:Single disc brake
Operation: Right hand operation
Specified brake fluid:
DOT 4Rear brake:Type:Single disc brake
Operation:
Left hand operation
Specified brake fluid: DOT 4Front suspension:Type:
Telescopic fork
Spring/shock absorber type: Coil spring/oil damper
Wheel travel: 79 mm (3.1 in)
Rear suspension:Type: Swingarm
Spring/shock absorber type: Coil spring/oil damper
Wheel travel: 93 mm (3.7 in)Electrical system:Ignition system:TCI
Charging system: AC magnetoBattery:Model:GT7B-4
Voltage, capacity: 12 V, 6.5 AhHeadlight:Bulb type:Halogen bulbBulb voltage, wattage × quantity:Headlight:
12 V, 60.0 W/55.0 W × 1
Tail/brake light: LED
Front turn signal light: 12 V, 10.0 W × 2
Rear turn signal light:
12 V, 10.0 W × 2
Auxiliary light: LED
License plate light: 12 V, 5.0 W × 1