PERIODIC MAINTENANCE AND MINOR REPAIR
6-7
6
NOTE: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 speci-fied torque as soon as possible.
4. Install the spark plug cap.
5. Place the spark plug cover in the
original position.
EAU19822
Engine oil The engine oil level should be checked
before each ride. In addition, the oil
must be changed and the oil filter ele-
ment replaced at the intervals specified
in the periodic maintenance and lubri-
cation chart.
To check the engine oil level
1. Place the vehicle on a level sur-
face and hold it in an upright posi-
tion.NOTE:Make sure that the vehicle is positioned
straight up when checking the oil level.
A slight tilt to the side can result in afalse reading.
2. Start the engine, warm it up for
several minutes, and then turn it
off.
3. Wait a few minutes until the oil set-
tles, and then check the oil level
through the check window located
at the bottom-left side of the crank-
case.
NOTE:The engine oil should be between theminimum and maximum level marks.
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.
To change the engine oil
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.1. Engine oil level check window
2. Maximum level mark
3. Minimum level mark
U5YSE1E0.book Page 7 Monday, November 7, 2005 8:38 AM
PERIODIC MAINTENANCE AND MINOR REPAIR
6-9
6
EAU20022
Final gear oil The final gear case must be checked
for oil leakage before each ride. If any
leakage is found, have a Yamaha deal-
er check and repair the vehicle. In addi-
tion, the final gear oil level must be
checked and the oil changed as follows
at the intervals specified in the periodic
maintenance and lubrication chart.
WARNING
EWA10370
Make sure that no foreign mate-
rial enters the final gear case.
Make sure that no oil gets on thetire or wheel.
To check the final gear oil level
1. Place the vehicle on a level sur-
face and hold it in an upright posi-
tion.
NOTE:
The final gear oil level must be
checked on a cold engine.
Make sure that the vehicle is posi-
tioned straight up when checking
the oil level. A slight tilt to the sidecan result in a false reading.2. Remove the oil filler bolt, and then
check the oil level in the final gear
case.
NOTE:The oil level should be at the brim of thefiller hole.
3. If the oil is below the brim of the fill-
er hole, add sufficient oil of the rec-
ommended type to raise it to the
correct level.
To change the final gear oil
1. Place an oil pan under the final
gear case to collect the used oil.2. Remove the oil filler bolt and drain
bolt to drain the oil from the final
gear case.
3. Install the final gear oil drain bolt,
and then tighten it to the specified
torque.
4. Add the recommended final gear
oil to the brim of the filler hole.
NOTE:GL4 is a quality rating. Hypoid gear oilsrated GL5 or GL6 may also be used.
5. Install the oil filler bolt, and then
tighten it to the specified torque.
1. Final gear oil drain bolt
2. Final gear oil filler bolt
3. Correct oil level
Tightening torque:
Final gear oil drain bolt:
23 Nm (2.3 m·kgf, 17 ft·lbf)
Recommended final gear oil:
SAE80 API GL-4 Hypoid gear oil
Oil quantity:
0.19 L (0.20 US qt) (0.17 Imp.qt)
Tightening torque:
Final gear oil filler bolt:
23 Nm (2.3 m·kgf, 17 ft·lbf)
U5YSE1E0.book Page 9 Monday, November 7, 2005 8:38 AM
PERIODIC MAINTENANCE AND MINOR REPAIR
6-18
6
EAU22580
Checking the brake fluid level Front brake
Rear brake
Insufficient brake fluid may allow air to
enter the brake system, possibly caus-
ing 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:
When checking the fluid level,
make sure that the top of the brake
fluid reservoir is level.
Use only the recommended quality
brake fluid, otherwise the rubber
seals may deteriorate, causing
leakage and poor braking perfor-
mance.
Refill with the same type of brake
fluid. Mixing fluids may result in a
harmful chemical reaction and
lead to poor braking performance.
Be careful that water does not en-
ter the brake fluid reservoir when
refilling. Water will significantly
lower the boiling point of the fluid
and may result in vapor lock.
Brake fluid may deteriorate paint-
ed surfaces or plastic parts. Al-
ways clean up spilled fluid
immediately.
As the brake pads wear, it is nor-
mal for the brake fluid level to grad-
ually go down. However, if the
brake fluid level goes down sud-
denly, have a Yamaha dealer
check the cause.
1. Minimum level mark
1. Minimum level mark
Recommended brake fluid:
DOT 4
U5YSE1E0.book Page 18 Monday, November 7, 2005 8:38 AM
SPECIFICATIONS
8-1
8
Dimensions:Overall length:
2460 mm (96.9 in)
Overall width:
945 mm (37.2 in)
Overall height:
1095 mm (43.1 in)
Seat height:
710 mm (28.0 in)
Wheelbase:
1645 mm (64.8 in)
Ground clearance:
140 mm (5.51 in)
Minimum turning radius:
3400 mm (133.9 in)Weight:With oil and fuel:
291.0 kg (642 lb)Engine:Engine type:
Air cooled 4-stroke, SOHC
Cylinder arrangement:
V-type 2-cylinder
Displacement:
1063.0 cm³ (64.86 cu.in)
Bore × stroke:
95.0 × 75.0 mm (3.74 × 2.95 in)
Compression ratio:
8.30 :1
Starting system:
Electric starter
Lubrication system:
Wet sump
Engine oil:Type:
SAE10W30 or SAE10W40 or SAE15W40
or SAE20W40 or SAE20W50
Recommended engine oil grade:
API service SE, SF, SG type or higher
Engine oil quantity:
Without oil filter element replacement:
3.00 L (3.17 US qt) (2.64 Imp.qt)
With oil filter element replacement:
3.10 L (3.28 US qt) (2.73 Imp.qt)Final gear oil:Type:
SAE80 API GL-4 Hypoid gear oil
Quantity:
0.19 L (0.20 US qt) (0.17 Imp.qt)Air filter:Air filter element:
Dry elementFuel:Recommended fuel:
Regular unleaded gasoline onlyFuel tank capacity:
17.0 L (4.49 US gal) (3.74 Imp.gal)
Fuel reserve amount:
4.5 L (1.19 US gal) (0.99 Imp.gal)
Carburetor:Manufacturer:
MIKUNI
Type × quantity:
BSR37 x 2Spark plug (s):Manufacturer/model:
NGK/BPR7ES
Manufacturer/model:
DENSO/W22EPR-U
Spark plug gap:
0.7–0.8 mm (0.028–0.031 in)Clutch:Clutch type:
Wet, multiple-discTransmission:Primary reduction system:
Spur gear
Primary reduction ratio:
78/47 (1.660)
Secondary reduction system:
Shaft drive
Secondary reduction ratio:
44/47 × 19/18 × 32/11 (2.875)
Transmission type:
Constant mesh 5-speed
Operation:
Left foot operation
-20 -10 0
10 20 30
40
50 ˚C
SAE 10W-30
SAE 15W-40SAE 20W-40SAE 20W-50
SAE 10W-40
U5YSE1E0.book Page 1 Monday, November 7, 2005 8:38 AM
SPECIFICATIONS
8-2
8
Gear ratio:
1st:
40/17 (2.353)
2nd:
40/24 (1.667)
3rd:
36/28 (1.286)
4th:
32/31 (1.032)
5th:
29/34 (0.853)Chassis:Frame type:
Double cradle
Caster angle:
33.00 °
Trail:
132.0 mm (5.20 in)Front tire:Type:
With tube
Size:
130/90-16M/C 67S
Manufacturer/model:
DUNLOP/D404FRear tire:Type:
With tube
Size:
170/80-15M/C 77S
Manufacturer/model:
DUNLOP/D404G
Loading:Maximum load:
197 kg (434 lb)
(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/cm²)
Rear:
225 kPa (33 psi) (2.25 kgf/cm²)
Loading condition:
90–197 kg (198–434 lb)
Front:
225 kPa (33 psi) (2.25 kgf/cm²)
Rear:
250 kPa (36 psi) (2.50 kgf/cm²)Front wheel:Wheel type:
Spoke wheel
Rim size:
16M/C x MT3.00Rear wheel:Wheel type:
Spoke wheel
Rim size:
15M/C x MT4.50Front brake:Type:
Dual disc brake
Operation:
Right hand operationRecommended fluid:
DOT 4
Rear brake:Type:
Single disc brake
Operation:
Right foot operation
Recommended fluid:
DOT 4Front suspension:Type:
Telescopic fork
Spring/shock absorber type:
Coil spring/oil damper
Wheel travel:
140.0 mm (5.51 in)Rear suspension:Type:
Swingarm (link suspension)
Spring/shock absorber type:
Coil spring/gas-oil damper
Wheel travel:
113.0 mm (4.45 in)Electrical system:Ignition system:
Transistorized coil ignition (digital)
Charging system:
AC magnetoBattery:Model:
GT14B-4
Voltage, capacity:
12 V, 12.0 Ah
U5YSE1E0.book Page 2 Monday, November 7, 2005 8:38 AM
SPECIFICATIONS
8-3
8
Headlight:Bulb type:
Halogen bulbBulb voltage, wattage × quantity:Headlight:
12 V, 60 W/55.0 W × 1
Tail/brake light:
12 V, 5.0 W/21.0 W × 1
Front turn signal light:
12 V, 21.0 W × 2
Rear turn signal light:
12 V, 21.0 W × 2
Auxiliary light:
12 V, 4.0 W × 1
Meter lighting:
14 V, 1.4 W × 2
Neutral indicator light:
12 V, 1.7 W × 1
High beam indicator light:
12 V, 1.7 W × 1
Oil level warning light:
12 V, 1.7 W × 1
Turn signal indicator light:
12 V, 1.7 W × 1
Engine trouble warning light:
12 V, 1.7 W × 1
Immobilizer system indicator light:
LEDFuses:Main fuse:
30.0 A
Headlight fuse:
15.0 ASignaling system fuse:
10.0 A
Ignition fuse:
10.0 A
Parking lighting fuse:
10.0 A
Carburetor heater fuse:
15.0 A
Ignitor unit fuse:
5.0 A
Backup fuse:
10.0 A
U5YSE1E0.book Page 3 Monday, November 7, 2005 8:38 AM