Yamaha YZ450FA Automobile User Manual


 
2-11
MAINTENANCE SPECIFICATIONS
Rear suspension:
USA, CDN
EUROPE, AUS,
NZ, ZA
Shock absorber travel 132.0 mm (5.20 in) ----
Spring free length 260 mm (10.24 in) 254.8 mm
(10.03 in)
Fitting length 252 mm (9.92 in) 253 mm (9.96 in) ----
Preload length
<Min.–Max.> 1.5–18 mm
(0.06–0.71 in)
Spring rate, STD K = 56.0 N/mm (5.7
kg/mm, 319.2 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)
Wheel:
Front wheel type Spoke wheel ----
Rear wheel type Spoke wheel ----
Front rim size/material 21 × 1.60/Aluminum ----
Rear rim size/material 19 × 2.15/Aluminum ----
Rim runout limit:
Radial ---- 2.0 mm
(0.08 in)
Lateral ---- 2.0 mm
(0.08 in)
Drive chain:
Type/manufacturer DID520DMA2 SDH/DAIDO ----
Number of links 113 links + joint ----
Chain slack 50–60 mm (2.0–2.4 in) ----
Chain length (15 links) ---- 242.9 mm
(9.563 in)
Front disc brake:
Disc outside dia.×Thickness 250 × 3.0 mm (9.84 × 0.12 in) 250 × 2.5
mm (9.84 ×
0.10 in)
Pad thickness 4.4 mm (0.17 in) 1.0 mm
(0.04 in)
Master cylinder inside dia. 9.52 mm (0.375 in) ----
Caliper cylinder inside dia. 22.65 mm (0.892 in) × 2 ----
Brake fluid type DOT #4 ----
Item Standard Limit