Page 50 of 94
6-14
PERIODIC MAINTENANCE AND MINOR REPAIR
1
2
3
4
56
7
8
9 4.Lift the front of the fuel tank to
position the fuel tank away from
the air filter case. (Do not discon-
nect the fuel hoses!)
EW000071
w8Make sure that the fuel tank is
well supported.
8Do not tilt or pull the fuel tank
too much, otherwise the fuel
hoses may come loose, which
could cause fuel leakage.
1
3
3
2
1.Relay (´2)
2.Air filter case cover
3.Screw (´7)5.Remove the relays by pulling
them off their holders, and the air
filter case cover by removing the
screws.
1
1.Sponge material6.Pull the sponge material out,
clean it with solvent, and then
squeeze the remaining solvent
out.
7.Apply oil of the recommended
type to the entire surface of the
sponge material, and then
squeeze the excess oil out.NOTE:
The sponge material should be wet
but not dripping.
Recommended oil:
2-stroke engine oil
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Page 55 of 94

6-19
PERIODIC MAINTENANCE AND MINOR REPAIR
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56
7
8
9Tire information
This motorcycle is equipped with cast
wheels and tubeless tires.
EW000078
w8The front and rear tires should
be of the same make and
design, otherwise the handling
characteristics of the motorcy-
cle cannot be guaranteed.
8After extensive tests, only the
tires listed below have been
approved for this model by
Yamaha Motor Co., Ltd.
EAU00683
w8Have a Yamaha dealer replace
excessively worn tires. Be-
sides being illegal, operating
the motorcycle with excessive-
ly worn tires decreases riding
stability and can lead to loss
of control.
8The replacement of all wheel-
and brake-related parts, inclu-
ding the tires, should be left to
a Yamaha dealer, who has the
necessary professional knowl-
edge and experience.
FRONT
ManufacturerSizeTypeBRIDGESTONE
100/90-18 56PTW53
DUNLOP
100/90-18 56PD602F
REAR
ManufacturerSizeType
BRIDGESTONE
130/80-17 65PTW54
DUNLOP130/80-17 65PD602
EW000079
w8Have a Yamaha dealer replace
excessively worn tires.
Besides being illegal, operat-
ing the motorcycle with exces-
sively worn tires decreases
riding stability and can lead to
loss of control.
8The replacement of all wheel-
and brake-related parts,
including the tires, should be
left to a Yamaha dealer, who
has the necessary profession-
al knowledge and experience.
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Page 86 of 94

SPECIFICATIONS
1
2
3
4
5
6
78
9
8-2 Spark plug
Manufacturer/modelNGK / BR9ES
Spark plug gap0.7Ð0.8 mm
Clutch typeWet, multiple-disc
Transmission
Primary reduction systemHelical gear
Primary reduction ratio71/22 (3.227)
Secondary reduction systemChain drive
Secondary reduction ratio3.563
Number of drive chain
sprocket teeth (Rear/front)57/16
Transmission typeConstant mesh 6-speed
OperationLeft foot
Gear ratio1st2.833
2nd1.875
3rd1.412
4th1.143
5th0.957
6th0.818
Chassis
Frame typeSemi double cradle
Caster angle26¡
Trail116 mmTires
Front
TypeTubeless
Size100/90-18 56P
Manufacturer/BRIDGESTONE / TW53
modelDUNLOP / D602F
Rear
TypeTubeless
Size130/80-17 65P
Manufacturer/BRIDGESTONE / TW54
modelDUNLOP / D602
Maximum load*180 kg
179 kg (CH, A)
Air pressure (cold tire)
up to 90 kg load*
Front175 kPa (1.75 kg/cm
2, 1.75 bar)
Rear200 kPa (2.00 kg/cm2, 2.00 bar)
90 kg loadÐMaximum
load*
Front175 kPa (1.75 kg/cm2, 1.75 bar)
Rear225 kPa (2.25 kg/cm2, 2.25 bar)
* Total weight of rider, passenger, cargo and accessories
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