Yamaha YZ250 Owner's Service Manual page 25

Item
Cooling:
Radiator core size:
Width
Height
Thickness
Radiator cap opening pressure
Radiator capacity (total)
Water pump:
Type
CHASSIS
Item
Steering system:
Steering bearing type
Front suspension:
Front fork travel
Fork spring free length
Spring rate, STD
Optional spring
Oil capacity
Oil grade
Inner tube outer diameter
Front fork top end
Rear suspension:
Shock absorber travel
Spring free length
Fitting length*
I.D. mark (Black/1)
I.D. mark (Black/2)
I.D. mark (Black/3)
Preload length
<Min.–Max.>
Spring rate, STD
Optional spring
Enclosed gas pressure
*Spring specification varies according to the differ-
ence in the production lot.
MAINTENANCE SPECIFICATIONS
Standard
107.8 mm (4.24 in)
240 mm (9.45 in)
32 mm (1.26 in)
95–125 kPa (0.95–1.25 kg/cm
0.63 L (0.55 Imp qt, 0.67 US qt)
Single-suction centrifugal pump
Standard
Taper roller bearing
300 mm (11.8 in)
454 mm (17.9 in)
K=4.3 N/mm (0.438 kg/mm, 24.5 lb/in)
Yes
3
521 cm (18.3 Imp oz, 17.6 US oz)
Suspension oil "S1"
48 mm (1.89 in)
Zero mm (Zero in)
USA, CDN, ZA, AUS,
NZ
131.5 mm (5.18 in)
Approx.265 mm (10.43
in)
253 mm (9.96 in)
259 mm (10.20 in)
250.5 mm (9.86 in)
1.5–13 mm (0.06–0.51
in)
K=48.0 N/mm (4.90 kg/
mm, 274.4 lb/in)
Yes
2
1,000 kPa (10 kg/cm ,
142 psi)
2-5
2
, 13.5–17.8 psi)
EUROPE
←
←
252 mm (9.92 in)
258 mm (10.16 in)
249.5 mm (9.82 in)
←
←
←
←
Limit
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Limit
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449 mm (17.7
in)
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