PERIODIC MAINTENANCE AND ADJUSTMENT
6-17
6
WARNING
EWA10570
Have a Yamaha dealer replace
excessively worn tires. Besides
being illegal, operating the
motorcycle with excessively
worn tires decreases riding sta-
bility and can lead to loss of
control.
The replacement of all wheel-
and brake-related parts, includ-
ing the tires, should be left to a
Yamaha dealer, who has the
necessary professional knowl-
edge and experience.
It is not recommended to patch
a punctured tube. If unavoid-
able, however, patch the tube
very carefully and replace it as
soon as possible with a high-quality product.
EAU21940
Spoke wheels To maximize the performance, durabil-
ity, and safe operation of your motor-
cycle, note the following points
regarding the specified wheels.
The wheel rims should be checked
for cracks, bends or warpage, and
the spokes for looseness or dam-
age before each ride. If any dam-
age is found, have a Yamaha
dealer replace the wheel. Do not
attempt even the smallest repair to
the wheel. A deformed or cracked
wheel must be replaced.
The wheel should be balanced
whenever either the tire or wheel
has been changed or replaced. An
unbalanced wheel can result in
poor performance, adverse han-
dling characteristics, and a short-
ened tire life.
Ride at moderate speeds after
changing a tire since the tire sur-
face must first be “broken in” for it
to develop its optimal characteris-
tics.
Front tire:
Size:
WR125R 80/90-21M/C 48P
WR125X 110/70-17M/C 54H
Manufacturer/model:
WR125R PIRELLI / MT90 SCOR-
PION
WR125X PIRELLI / SPORT DE-
MON
WR125R MICHELIN / SIRAC
Rear tire:
Size:
WR125R 110/80-18 M/C 58P
WR125X 140/70-17 M/C 66H
Manufacturer/model:
WR125R PIRELLI / MT90 SCOR-
PION
WR125X PIRELLI / SPORT DE-
MON
WR125R MICHELIN / SIRAC
U22BE0E0.book Page 17 Wednesday, December 17, 2008 11:00 AM
SPECIFICATIONS
8-2
8
Operation:
Left foot operation
Gear ratio:
1st:
34/12 (2.833)
2nd:
30/16 (1.875)
3rd:
30/22 (1.364)
4th:
24/21 (1.143)
5th:
22/23 (0.957)
6th:
21/25 (0.840)Chassis:Frame type:
Double cradle
Caster angle:
WR125R 27.00 °
WR125X 25.50 °
Trail:
WR125R 107.0 mm (4.21 in)
WR125X 78.5 mm (3.09 in)Front tire:Type:
With tube
Size:
WR125R 80/90-21M/C 48P
WR125X 110/70-17M/C 54H
Manufacturer/model:
WR125R PIRELLI / MT90 SCORPION
WR125X PIRELLI / SPORT DEMONManufacturer/model:
WR125R MICHELIN / SIRAC
Rear tire:Type:
With tube
Size:
WR125R 110/80-18 M/C 58P
WR125X 140/70-17 M/C 66H
Manufacturer/model:
WR125R PIRELLI / MT90 SCORPION
WR125X PIRELLI / SPORT DEMON
Manufacturer/model:
WR125R MICHELIN / SIRACLoading:Maximum load:
185 kg (408 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:
200 kPa (2.00 kgf/cm², 29 psi)
Rear:
200 kPa (2.00 kgf/cm², 29 psi)
Loading condition:
90–185 kg (198–408 lb)
Front:
200 kPa (2.00 kgf/cm², 29 psi)
Rear:
225 kPa (2.25 kgf/cm², 33 psi)
Front wheel:Wheel type:
Spoke wheel
Rim size:
WR125R 21x1.6
WR125X 17x3Rear wheel:Wheel type:
Spoke wheel
Rim size:
WR125R 18 x 1.85
WR125X 17 x MT3.5Front brake:Type:
Single disc brake
Operation:
Right hand operation
Recommended fluid:
DOT 4Rear 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:
WR125R 240.0 mm (9.45 in)
WR125X 210.0 mm (8.27 in)
U22BE0E0.book Page 2 Wednesday, December 17, 2008 11:00 AM
