Yamaha YZF-R125 Service Manual: Installing the engine
1. Install:
- Engine "1"
- Engine mounting bolt (rear lower side) "2"
- Engine mounting nut (rear lower side) "3"
- Engine mounting bolt (rear upper side) "4"
- Engine mounting nut (rear upper side) "5"
- Engine mounting bolt (front side) "6"
- Engine mounting nut (front side) "7"
NOTE:
Do not fully tighten the bolts and nuts.
2. Tighten:
- Engine mounting nut (rear upper side)
- Engine mounting nut (rear lower side)
- Engine mounting nut (front side)
Engine removal
...
Installing the shift arm
1. Install:
Shift arm "1"
NOTE:
Make sure that the distance "a" between the
center of the left rider footrest "2" and the center
of the shift pedal "3" is within specification.
...
Other materials:
Tachometer
Tachometer
Tachometer
Tachometer red zone
The electric tachometer allows the rider
to monitor the engine speed and keep it
within the ideal power range.
When the key is turned to "ON", the tachometer
needle will sweep once
across the r/min range and then return
to zero r/min ...
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 ...
Checking the primary driven gear
1. Check:
Primary driven gear "1"
Damage/wear Replace the
primary drive
gear and clutch housing as a set.
Excessive noise during operation
Replace
the primary drive gear and clutch housing as
a set.
...