Page 32 of 92
INSTRUMENT AND CONTROL FUNCTIONS
3-18
3
CAUTION:
ECA10100
Never attempt to turn an adjusting
mechanism beyond the maximum orminimum settings.NOTE:Although the total number of clicks of a
damping force adjusting mechanism
may not exactly match the above spec-
ifications due to small differences in
production, the actual number of clicks
always represents the entire adjusting
range. To obtain a precise adjustment,
it would be advisable to check the num-
ber of clicks of each damping force ad-
justing mechanism and to modify thespecifications as necessary.
EAU43251
Adjusting the shock absorber
assembly This shock absorber assembly is
equipped with a spring preload adjust-
ing ring and rebound and compression
damping force adjusting knobs.
WARNING
EWA10210
Always adjust both shock absorber
assemblies equally, otherwise poor
handling and loss of stability mayresult.
Spring preload
Adjust the spring preload as follows.
1. Loosen the lock screw 1/2 turn
counterclockwise.2. To increase the spring preload and
thereby harden the suspension,
turn the adjusting ring in direction
(a). To decrease the spring pre-
load and thereby soften the sus-
pension, turn the adjusting ring in
direction (b).
NOTE:
Use the special wrench included in
the owner's tool kit to make this ad-
justment.
The spring preload setting is deter-
mined by measuring distance A,
shown in the illustration. The long-
er distance A is, the higher the
spring preload; the shorter dis-
tance A is, the lower the spring
preload. With each complete turn
of the adjusting ring, distance A
changes by 1.5 mm (0.06 in).
Be sure to turn the adjusting ring
so that the lock screw is facing out-ward.
1. Lock screw
U5WME4E0.book Page 18 Friday, July 6, 2007 2:43 PM
Page 78 of 92
PERIODIC MAINTENANCE AND MINOR REPAIR
6-34
68. Remove the brake caliper bracket
and the wheel.
EAU25841
To install the rear wheel
1. Place the wheel and the brake cal-
iper bracket in the original position.
2. Insert the wheel axle through the
brake caliper bracket and wheel
from the right-hand side, and then
install the axle nut.
3. Install the drive chain onto the rear
sprocket, and then adjust the drive
chain slack. (See page 6-19.)
4. Connect the brake torque rod to
the brake caliper bracket by install-
ing the bolt and the nut.
5. Install the brake caliper by install-
ing the bolts.NOTE:Make sure that there is enough space
between the brake pads before install-
ing the brake caliper onto the brakedisc.
6. Take the motorcycle off the center-
stand so that the rear wheel is on
the ground.7. Tighten the axle nut, brake caliper
bolts and brake torque rod nut to
the specified torques.
EAU25850
Troubleshooting Although Yamaha motorcycles receive
a thorough inspection before shipment
from the factory, trouble may occur dur-
ing operation. Any problem in the fuel,
compression, or ignition systems, for
example, can cause poor starting and
loss of power.
The following troubleshooting chart
represents a quick and easy procedure
for checking these vital systems your-
self. However, should your motorcycle
require any repair, take it to a Yamaha
dealer, whose skilled technicians have
the necessary tools, experience, and
know-how to service the motorcycle
properly.
Use only genuine Yamaha replace-
ment parts. Imitation parts may look like
Yamaha parts, but they are often inferi-
or, have a shorter service life and can
lead to expensive repair bills.
Tightening torques:
Axle nut:
150 Nm (15.0 m·kgf, 110 ft·lbf)
Brake caliper bolt:
40 Nm (4.0 m·kgf, 29 ft·lbf)
Brake torque rod nut:
23 Nm (2.3 m·kgf, 17 ft·lbf)
U5WME4E0.book Page 34 Friday, July 6, 2007 2:43 PM
Page 84 of 92
SPECIFICATIONS
8-1
8
Dimensions:Overall length:
2175 mm (85.6 in)
Overall width:
765 mm (30.1 in)
Overall height:
1115 mm (43.9 in)
Seat height:
795 mm (31.3 in)
Wheelbase:
1500 mm (59.1 in)
Ground clearance:
125 mm (4.92 in)
Minimum turning radius:
2800 mm (110.2 in)Weight:With oil and fuel:
245.0 kg (540 lb)Engine:Engine type:
Air cooled 4-stroke, DOHC
Cylinder arrangement:
Forward-inclined parallel 4-cylinder
Displacement:
1251.0 cm³
Bore × stroke:
79.0 × 63.8 mm (3.11 × 2.51 in)
Compression ratio:
9.70 :1
Starting system:
Electric starter
Lubrication system:
Wet sump
Engine oil:Type:
SAE10W30, SAE10W40, SAE15W40,
SAE20W40 or SAE20W50
Recommended engine oil grade:
API service SG type or higher, JASO
standard MA
Engine oil quantity:
Without oil filter element replacement:
2.80 L (2.96 US qt) (2.46 Imp.qt)
With oil filter element replacement:
3.15 L (3.33 US qt) (2.77 Imp.qt)Air filter:Air filter element:
Oil-coated paper elementFuel:Recommended fuel:
Premium unleaded gasoline only
Fuel tank capacity:
21.0 L (5.55 US gal) (4.62 Imp.gal)
Fuel reserve amount:
4.5 L (1.19 US gal) (0.99 Imp.gal)
Fuel injection:Throttle body:
Manufacturer:
MIKUNI
Type/quantity:
ACW34/2Spark plug (s):Manufacturer/model:
NGK/DPR8EA-9
Spark plug gap:
0.8–0.9 mm (0.031–0.035 in)Clutch:Clutch type:
Wet, multiple-discTransmission:Primary reduction system:
Spur gear
Primary reduction ratio:
98/56 (1.750)
Secondary reduction system:
Chain drive
Secondary reduction ratio:
38/17 (2.235)
Transmission type:
Constant mesh 5-speed
Operation:
Left foot operation
Gear ratio:
1st:
40/14 (2.857)
2nd:
36/18 (2.000)
3rd:
33/21 (1.571)
-20 -10 0
10 20 30
40
50 ˚C
SAE 10W-30
SAE 15W-40SAE 20W-40SAE 20W-50
SAE 10W-40
U5WME4E0.book Page 1 Friday, July 6, 2007 2:43 PM