Yamaha YZ250F(Z) Owner's Service Manual page 34

Lubrication system:
Oil filter type
Oil pump type
Tip clearance
Side clearance
Housing and rotor clearance
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
Preload length
<Min.–Max.>
Spring rate, STD
Optional spring
Enclosed gas pressure
Item
MAINTENANCE SPECIFICATIONS
Standard
Paper type
Trochoid type
0.12 mm or less (0.0047 in or less)
0.09–0.17 mm (0.0035–0.0067 in)
0.03–0.10 mm (0.0012–0.0039 in)
121.4 mm (4.8 in)
235 mm (9.3 in)
28 mm (1.1 in)
110 kPa (1.1 kg/cm
0.64 L (0.56 Imp qt, 0.68 US qt)
Single-suction centrifugal pump
Standard
Taper roller bearing
USA, CDN
300 mm (11.8 in)
454 mm (17.9 in)
K = 4.4 N/mm (0.449 kg/
mm, 25.1 lb/in)
Yes
3
541 cm (19.0 lmp oz,
18.3 US oz)
Suspension oil "S1"
48 mm (1.89 in)
5 mm (0.20 in)
USA, CDN
131.5 mm (5.18 in)
260 mm (10.24 in)
250 mm (9.84 in)
1.5–20 mm (0.06–0.79
in)
K = 52.0 N/mm (5.30 kg/
mm, 296.8 lb/in)
Yes
2
1,000 kPa (10 kg/cm ,
142 psi)
2-8
2
, 15.6 psi)
EUROPE, AUS, NZ, ZA
←
←
K = 4.5 N/mm (0.459 kg/
mm, 25.7 lb/in)
←
3
528 cm (18.6 lmp oz,
17.9 US oz)
←
←
←
EUROPE, AUS, NZ, ZA
←
←
←
←
←
←
←
Limit
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0.20 mm (0.008
in)
0.24 mm (0.009
in)
0.17 mm
(0.0067 in)
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Limit
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449 mm (17.7
in)
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