Yamaha YZ450F(S), Owner'S Service Manual

Page: 84 / 642

SPEC
2 - 13
MAINTENANCE SPECIFICATIONS
EC212201
CHASSIS
Item Standard Limit
Steering system:
Steering bearing type Taper roller bearing ----
Front suspension: USA, CDN,
AUS, NZ, ZA
EUROPE
Front fork travel 300 mm (11.8 in)
←
----
Fork spring free length 479 mm (18.9 in)
←
474 mm (18.7 in)
Spring rate, STD K = 4.5 N/mm
(0.459 kg/mm,
25.7 lb/in) K = 4.4 N/mm
(0.449 kg/mm,
25.1 lb/in) ----
Optional spring/spacer Yes
←
----
Oil capacity 662 cm
3
(23.3 Imp oz,
22.4 US oz)
668 cm
3
(23.5 Imp oz,
22.6 US oz)
----
Oil level 125 mm (4.92 in) 120 mm (4.72 in) ----
<Min.~Max.>
(From top of outer tube with inner
tube and damper rod fully com-
pressed without spring.) 105 ~ 135 mm
(4.13 ~ 5.31 in)
←
----
Oil grade Suspension oil
“01”
←
----
Inner tube outer diameter 48 mm (1.89 in)
←
----
Front fork top end Zero mm (Zero in)
←
----
Rear suspension: USA, CDN,
AUS, NZ, ZA
EUROPE
Shock absorber travel 132 mm
(5.20 in)
←
----
Spring free length 260 mm
(10.24 in) 275 mm
(10.83 in) ----
Fitting length 248 mm
(9.76 in) 263 mm
(10.35 in) ----
<Min.~Max.> 240.5 ~ 258.5 mm
(9.47 ~ 10.18 in) 255.5 ~ 273.5 mm
(10.06 ~ 10.77 in) ----
Spring rate, STD K = 52.0 N/mm
(5.30 kg/mm,
296.8 lb/in) K = Approx.
52.0 N/mm
(5.30 kg/mm,
296.8 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)