torque YAMAHA WR 450F 2007 Owner's Manual

5 - 51
CHASSTEERING
9. Install:
•Plain washer 1
•Steering shaft nut 2
T R..145 Nm (14.5 m · kg, 105 ft · lb)
10. After tightening the nut, check the steering
for smooth movement. If not, adjust the
steering by loosening the ring nut little by
little.
11. Adjust:
•Front fork top end a
Front fork top end (standard)
a:
Zero mm (Zero in)
12. Tighten:
•Pinch bolt (handle crown) 1
•Pinch bolt (under bracket) 2
CAUTION:
Tighten the under bracket to specified
torque. If torqued too much, it may cause
the front fork to malfunction.
13. Install:
•Multi-function meter bracket 1
•Multi-function meter 2
NOTE:
Pass the throttle cables 3, clutch cable 4 and
hot starter cable 5 between the multi-function
meter bracket and handle crown.
14. Install:
•Holder 1
•Clamp 2
NOTE:
•Install so that the marking a on the speed
sensor lead aligns with the holder edge.
•Fasten the speed sensor lead to the holder
with the clamp.
T R..21 Nm (2.1 m · kg, 15 ft · lb)
T R..21 Nm (2.1 m · kg, 15 ft · lb)
T R..7 Nm (0.7 m · kg, 5.1 ft · lb)
T R..4 Nm (0.4 m · kg, 2.9 ft · lb)
T R..13 Nm (1.3 m · kg, 9.4 ft · lb)
T R..7 Nm (0.7 m · kg, 5.1 ft · lb)

7 - 19
TUNSETTING
EC72H002
Suspension setting
•Front fork
NOTE:
•If any of the following symptoms is experienced with the standard position as the base, make
resetting by reference to the adjustment procedure given in the same chart.
•Before any change, set the rear shock absorber sunken length to the standard figure 90 ~ 100 mm
(3.5 ~ 3.9 in).
SymptomSection
Check Adjust
JumpLarge
gapMedium
gapSmall
gap
Stiff over entire rangeCompression damping Turn adjuster counterclockwise (about 2 clicks) to
decrease damping.
Oil level (oil amount) Decrease oil level by about 5 ~ 10 mm (0.2 ~ 0.4 in).
Spring Replace with soft spring.
Unsmooth movement
over entire rangeOuter tube
Check for any bends, dents, and other noticeable
scars, etc. If any, replace affected parts.
Inner tube
Under bracket tightening
torqueRetighten to specified torque.
Poor initial
movementRebound damping Turn adjuster counterclockwise (about 2 clicks) to
decrease damping.
Oil seal Apply grease in oil seal wall.
Soft over entire
range, bottoming outCompression damping Turn adjuster clockwise (about 2 clicks) to increase
damping.
Oil level (oil amount) Increase oil level by about 5 ~ 10 mm (0.2 ~ 0.4 in).
Spring Replace with stiff spring.
Stiff toward stroke
endOil level (oil amount) Decrease oil level by about 5 mm (0.2 in).
Soft toward stroke
end, bottoming outOil level (oil amount) Increase oil level by about 5 mm (0.2 in).
Stiff initial movement Compression dampingTurn adjuster counterclockwise (about 2 clicks) to
decrease damping.
Low front, tending to
lower front postureCompression damping Turn adjuster clockwise (about 2 clicks) to increase
damping.
Rebound damping Turn adjuster counterclockwise (about 2 clicks) to
decrease damping.
Balance with rear end Set sunken length for 95 ~ 100 mm (3.7 ~ 3.9 in)
when one passenger is astride seat (lower rear pos-
ture).
Oil level (oil amount) Increase oil level by about 5 mm (0.2 in).
“Obtrusive” front,
tending to upper front
postureCompression damping Turn adjuster counterclockwise (about 2 clicks) to
decrease damping.
Balance with rear end Set sunken length for 90 ~ 95 mm (3.5 ~ 3.7 in)
when one passenger is astride seat (upper rear pos-
ture).
Spring Replace with soft spring.
Oil lever (oil amount) Decrease oil level by about 5 ~ 10 mm (0.2 ~ 0.4 in).