Checking The Wheels; Checking And Tightening The Spokes - Yamaha SR400 2014 Service Manual

with the specified brake fluid.
b. Install the brake master cylinder reservoir di-
aphragm.
c. Connect a clear plastic hose "1" tightly to the
bleed screw "2".
2
1
d. Place the other end of the hose into a con-
tainer.
e. Slowly apply the brake lever several times.
f. Fully pull the brake lever and hold it in posi-
tion.
g. Loosen the bleed screw.
TIP
Loosening the bleed screw will release the pres-
sure and cause the brake lever to contact the
throttle grip.
h. Tighten the bleed screw and then release the
brake lever.
i. Repeat steps (e) to (h) until all of the air bub-
bles have disappeared from the brake fluid in
the plastic hose.
j. Tighten the bleed screw to specification.
Bleed screw
6 Nm (0.6 m·kgf, 4.3 ft·lbf)
k. Fill the brake fluid reservoir to the proper level
with the specified brake fluid.
Refer to "CHECKING THE BRAKE FLUID
LEVEL" on page 3-11.
EWA13110
WARNING
After bleeding the hydraulic brake system,
check the brake operation.
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EAS21670

CHECKING THE WHEELS

The following procedure applies to both of the
wheels.
1. Check:
• Wheel
Damage/out-of-round  Replace.
PERIODIC MAINTENANCE
EWA13260
WARNING
Never attempt to make any repairs to the
wheel.
TIP
After a tire or wheel has been changed or re-
placed, always balance the wheel.
EAS21681

CHECKING AND TIGHTENING THE SPOKES

The following procedure applies to all of the
spokes.
1. Check:
• Spoke
Bends/damage  Replace.
Loose  Tighten.
Tap the spokes with a screwdriver.
TIP
A tight spoke will emit a clear, ringing tone; a
loose spoke will sound flat.
2. Tighten:
• Spoke
(with a spoke nipple wrench "1")
TIP
Be sure to tighten the spokes before and after
break-in.
Spoke nipple wrench (8–9)
90890-01522
Spoke nipple wrench (8–9)
YM-01522
Spoke
3.0 Nm (0.30 m·kgf, 2.2 ft·lbf)
3-15