Yamaha YZ450FF 1SL-28199-11, Owner'S Service Manual

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CHASSIS SPECIFICATIONS
2-10
Rebound damping adjusting positions
* Position in which the adjuster is turned in finger tight
Minimum
20 click (s) out*
Standard 10 click (s) out* (USA) (CAN)
8 click (s) out* (EUR) (JPN) (AUS) (NZL) (ZAF)
Maximum (hard) Fully turned in
Compression damping adjusting positions
* Position in which the adjuster is turned in finger tight
Minimum
20 click (s) out*
Standard 8 click (s) out*
Maximum (hard) Fully turned in
Rear suspension
Type Swingarm (link suspension)
Spring/shock absorber type Coil spring/gas-oil damper
Rear shock absorber assembly travel 132.0 mm (5.20 in)
Spring free length 275.0 mm (10.83 in)
Spring rate K1 58.00 N/mm (5.91 kgf/mm, 331.18 lbf/in) (USA)
(CAN)
56.00 N/mm (5.71 kgf/mm, 319.76 lbf/in) (EUR)
(JPN) (AUS) (NZL) (ZAF)
Spring stroke K1 0.0–150.0 mm (0.00–5.91 in)
Optional spring available Yes
Enclosed gas/air pressure (STD) 980 kPa (9.8 kgf/cm
2
, 139.4 psi)
Spring installed length
Minimum Position in which the spring is turned in 1.5 mm
(0.06 in) from its free length.
Standard Position in which the spring is turned in 10 mm
(0.39 in) from its free length.
Maximum Position in which the spring is turned in 18 mm
(0.71 in) from its free length.
Rebound damping adjusting positions
* Position in which the adjuster is turned in finger tight
Minimum
30 click (s) out*
Standard 14 click (s) out* (USA) (CAN)
12 click (s) out* (EUR) (JPN) (AUS) (NZL)
(ZAF)
Maximum Fully turned in
Compression damping adjusting positions
(for fast compression damping)
* Position in which the adjuster is turned in finger tight
Minimum
2 turn (s) out*
Standard 1-1/2 turn (s) out* (USA) (CAN)
1-1/8 turn (s) out* (EUR) (JPN) (AUS) (NZL)
(ZAF)
Maximum Fully turned in