Yamaha YZF-R7 Owner's Service Manual page 254

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FRONT WHEEL AND BRAKE DISCS
3. Measure:
• radial wheel runout 1
• lateral wheel runout 2
Over the specified limits → Replace.
Max. radial wheel runout
1.0 mm (0.04 in)
Max. lateral wheel runout
0.5 mm (0.02 in)
4. Check:
• wheel bearings
Front wheel turns roughly or is loose →
Replace the wheel bearings.
• oil seals
Damage/wear → Replace.
5. Replace:
• wheel bearings
• oil seals
New
a. Clean the outside of the front wheel
hub.
b. Remove the oil seals 1 with a flat-
head screwdriver.
NOTE:
To prevent damaging the wheel, place a
rag 2 between the screwdriver and the
wheel surface.
c. Remove the wheel bearings 3 with a
general bearing puller.
d. Install the new wheel bearings and oil
seals in the reverse order of disas-
sembly.
CAUTION:
ACHTUNG:
Do not contact the wheel bearing center
race 4 or balls 5. Contact should be
made only with the outer race 6.
NOTE:
• First fully insert the right wheel bear-
ing, then install the spacer and finally
the left wheel bearing.
• Use a socket 7 that matches the diam-
eter of the wheel bearing outer race
and oil seal.
7 - 4
CHAS
New