Yamaha YZ450FA Automobile User Manual


 
2-10
MAINTENANCE SPECIFICATIONS
CHASSIS
Lubrication system:
Oil filter type Paper type ----
Oil pump type Trochoid type ----
Tip clearance 0.12 mm or less (0.0047 in or less) 0.20 mm
(0.008 in)
Side clearance 0.09–0.17 mm (0.0035–0.0067 in) 0.24 mm
(0.009 in)
Housing and rotor clearance 0.03–0.10 mm (0.0012–0.0039 in) 0.17 mm
(0.007 in)
Bypass valve setting pressure 40–80 kPa (0.4–0.8 kg/cm
2
,
5.69–11.38 psi)
----
Cooling:
Radiator core size
Width 121.4 mm (4.78 in) ----
Height 235 mm (9.25 in) ----
Thickness 28 mm (1.10 in) ----
Radiator cap opening pressure 108–137 kPa (1.08–1.37 kg/cm
2
,
15.4–19.5 psi)
----
Radiator capacity (total) 0.62 L (0.55 Imp qt, 0.66 US qt) ----
Water pump
Type Single-suction centrifugal pump ----
Item Standard Limit
Item Standard Limit
Steering system:
Steering bearing type Taper roller bearing ----
Front suspension:
USA, CDN
EUROPE, AUS,
NZ, ZA
Front fork travel 310 mm (12.2 in) ----
Fork spring free length 470 mm (18.5 in) 465 mm
(18.3 in)
Spring rate, STD K = 4.6 N/mm
(0.469 kg/mm, 26.3
lb/in)
----
Optional spring Yes ----
Oil capacity 544 cm
3
(19.1 lmp
oz, 18.4 US oz)
----
Oil grade Suspension oil "S1" ----
Inner tube outer diameter 48 mm (1.89 in) ----
Front fork top end Zero mm (Zero in) ----