Yamaha YZF-R125 Service Manual: Removing the primary drive gear and balancer gears
1. Loosen:
- Primary drive gear nut "1"
NOTE:
Place the aluminum plate "a" between the balancer drive gear "2" and the balancer driven gear "3", and then loosen the primary drive gear nut.
2. Straighten the lock washer tab.
3. Loosen:
- Balancer driven gear nut "1"
NOTE:
Place the aluminum plate "a" between the balancer drive gear "2" the and the balancer driven gear "3", and then loosen the balancer driven gear nut.
Balancer gear
...
Checking the balancer gears and primary drive gear
1. Check:
Balancer drive gear
Balancer driven gear
Cracks/damage/wear Replace.
2. Check:
Primary drive gear
Refer to "CHECKING THE PRIMARY DRIVE
GEAR" on page 5-43.
...
Other materials:
Installing the crankshaft
1. Install:
Crankshaft "1"
NOTE:
Install the crankshaft with the crankshaft installer
pot "2", crankshaft installer bolt "3", adapter
(M12) "4" and spacer (crankshaft installer) "5".
CAUTION:To avoid scratching the crankshaft and to
ease the installation procedure, lubricate ...
Checking the front brake hose
1. Check:
Brake hose "1"
Cracks/damage/wear
Replace.
2. Check:
Brake hose holder "2"
Loose connection Tighten the
holder bolt.
3. Hold the vehicle upright and apply the front
brake several times.
4. Check:
Brake hose
Brake fluid leakage Replace the
da ...
Assembling the water pump
1. Install:
Water pump seal "1"
(into the water pump housing "2")
CAUTION:Never lubricate the water pump seal
surface
with oil or grease.
NOTE:
Install the water pump seal with the special
tools.
Install the water pump seal with the special
tools to the specifi ...