Yamaha YZF-R125 Service Manual: Checking the front fork legs
The following procedure applies to both of the front fork legs.
1. Check:
- Inner tube
- Outer tube
Bends/damage/scratches
Replace.
| WARNING Do not attempt to straighten a bent inner tube as this may dangerously weaken it. |
2. Measure:
- Spring free length "a"
Out of specification
Replace.
3. Check:
- Damper rod
Damage/wear
Replace.
Obstruction
Blow out all
of the oil passages with compressed air. - Oil flow stopper
Damage
Replace.
| CAUTION: When disassembling and assembling the front fork leg, do not allow any foreign material to enter the front fork. |
Disassembling the front fork legs
The following procedure applies to both of the
front fork legs.
1. Remove:
Rubber cap
Clip "1"
Front fork cap "2"
(with O-ring)
Fork spring
NOTE:
Push the front fork cap in the direc ...
Assembling the front fork legs
The following procedure applies to both of the
front fork legs.
WARNING
Make sure the oil levels in both front fork
legs are equal.
Uneven oil levels can result in poor handling
...
Other materials:
Removing the crankshaft
1. Remove:
Crankshaft "1"
NOTE:
Remove the crankshaft with the crankcase
separating tool "2".
Make sure the crankcase separating tool is
centered over the crankshaft.
CAUTION:
To protect the end of the crankshaft, place
an appropriate sized socket between the
c ...
Checking the clutch springs
The following procedure applies to all of the
clutch springs.
1. Check:
Clutch spring
Damage Replace the clutch
springs as a
set.
2. Measure:
Clutch spring free length "a"
Out of specification Replace
the clutch
springs as a set.
...
Checking the radiator fan motor
1. Check:
Radiator fan motor
Faulty/rough movement → Replace.
a. Disconnect the radiator fan motor coupler
from the wire harness.
b. Connect the battery (DC 12 V) as shown.
Positive tester probe →
blue "1"
Negative tester probe →
black "2"
c. Measure ...