MAINTENANCE SPECIFICATIONS

SPEC

CHASSIS

Item

Standard

 

Limit

 

 

 

 

 

Steering system:

 

 

 

 

Steering bearing type

Taper roller bearing

 

----

 

 

 

 

 

Front suspension:

USA, CDN

EUROPE

AUS, NZ, ZA

Front fork travel

300 mm (11.8 in)

Fork spring free length

460 mm (18.1 in)

Spring rate, STD

K = 4.31 N/mm

K = 4.12 N/mm

K = 4.22 N/mm

 

(0.44 kg/mm,

(0.42 kg/mm,

(0.43 kg/mm,

 

24.6 lb/in)

23.5 lb/in)

24.1 lb/in)

Optional spring/spacer

Yes

Oil capacity

568 cm3

573 cm3

578 cm3

 

(20.0 lmp oz,

(20.2 lmp oz,

(20.3 lmp oz,

 

19.2 US oz)

19.4 US oz)

19.5 US oz)

Oil level

135 mm (5.31 in)

130 mm (5.12 in)

125 mm (4.92 in)

<Min.~Max.>

80 ~ 150 mm

(From top of outer tube with inner

(3.15 ~ 5.91 in)

 

 

 

tube and damper rod fully com-

 

 

 

 

pressed without spring.)

 

 

 

 

Oil grade

Suspension oil

 

“01”

 

 

 

Inner tube outer diameter

46 mm (1.81 in)

Front fork top end

5 mm (0.20 in)

10 mm (0.39 in)

 

 

 

 

Rear suspension:

USA, CDN

EUROPE

AUS, NZ, ZA

Shock absorber travel

132 mm (5.20 in)

Spring free length

260 mm (10.24 in)

Fitting length

245 mm (9.65 in)

246.5 mm (9.70 in)

245 mm (9.65 in)

<Min.~Max.>

240.5 ~ 258.5 mm

 

(9.47 ~ 10.18 in)

 

 

 

Spring rate, STD

K = 49.0 N/mm

K = 46.0 N/mm

K = 50.0 N/mm

 

(5.00 kg/mm,

(4.70 kg/mm,

(5.10 kg/mm,

 

280.0 lb/in)

263.2 lb/in)

285.6 lb/in)

Optional spring

Yes

Enclosed gas pressure

1,000 kPa

 

(10 kg/cm2, 142 psi)

 

 

 

Swingarm:

 

 

 

 

Swingarm free play limit

 

 

 

 

End

----

 

 

1.0 mm

 

 

 

 

(0.04 in)

2 - 12

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Image 49
Yamaha WR250FM service manual Chassis, USA, CDN Europe AUS, NZ, ZA