Yamaha WR250FM Bicycle User Manual


 
SPEC
2 - 12
MAINTENANCE SPECIFICATIONS
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
(0.44 kg/mm,
24.6 lb/in)
K = 4.12 N/mm
(0.42 kg/mm,
23.5 lb/in)
K = 4.22 N/mm
(0.43 kg/mm,
24.1 lb/in)
Optional spring/spacer Yes ←←
Oil capacity 568 cm
3
(20.0 lmp oz,
19.2 US oz)
573 cm
3
(20.2 lmp oz,
19.4 US oz)
578 cm
3
(20.3 lmp oz,
19.5 US oz)
Oil level 135 mm (5.31 in) 130 mm (5.12 in) 125 mm (4.92 in)
<Min.~Max.>
(From top of outer tube with inner
tube and damper rod fully com-
pressed without spring.)
80 ~ 150 mm
(3.15 ~ 5.91 in)
←←
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
(5.00 kg/mm,
280.0 lb/in)
K = 46.0 N/mm
(4.70 kg/mm,
263.2 lb/in)
K = 50.0 N/mm
(5.10 kg/mm,
285.6 lb/in)
Optional spring Yes ←←
Enclosed gas pressure
1,000 kPa
(10 kg/cm
2
, 142 psi)
←←
Swingarm:
Swingarm free play limit
End ---- 1.0 mm
(0.04 in)