Yamaha YZ450FT Automobile User Manual


 
5 - 4
CHAS
FRONT WHEEL AND REAR WHEEL
EC514200
Wheel axle
1. Measure:
Wheel axle bends
Out of specification Replace.
Use the dial gauge 1.
N
OTE:
The bending value is shown by one half of the
dial gauge reading.
WARNING
Do not attempt to straighten a bent axle.
Wheel axle bending limit:
0.5 mm (0.020 in)
EC594200
Brake disc
1. Measure:
Brake disc deflection (only rear brake
disc)
Use the dial gauge 1.
Out of specification Inspect wheel
runout.
If wheel runout is in good condition,
replace the brake disc.
2. Measure:
Brake disc thickness a
Out of limit Replace.
Disc deflection limit:
Standard <Limit>
Rear
0.15 mm
(0.006 in)
Disc wear limit:
Standard <Limit>
Front
3.0 mm (0.12 in) 2.5 mm (0.10 in)
Rear
4.0 mm (0.16 in) 3.5 mm (0.14 in)