Yamaha YZF-R125 Service Manual: 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 specified depth as shown in the illustration.
A. Push down
3. Mechanical seal installer
4. Middle driven shaft bearing driver
a. 0-0.5 mm (0-0.02 in)
2. Lubricate:
- Water pump seal lip
3. Install:
- Water pump housing gasket "1"
- Water pump housing plate "2"
- Impeller shaft
- Impeller shaft retainer "3"
NOTE:
- Before installing the impeller shaft retainer, lubricate the slit on the impeller shaft end with a thin coat of lithium-soap-based grease.
- Install the water pump housing gasket, water pump housing plate, and impeller shaft retainer as shown in the illustration.
- After installation, check that the impeller shaft rotates smoothly.
Checking the water pump
1. Check:
Water pump housing cover
Water pump housing
Cracks/damage Replace.
Impeller shaft
Cracks/damage/wear Replace.
Bearing
Rough movement Replace.
Radiator outlet hose
Crac ...
Installing the water pump
1. Install:
Water pump assembly "1"
O-rings "2"
NOTE:
Align the projection "a" on the impeller shaft
with the slit "b" on the camshaft sprocket bolt.
Lubricate the O-rings with a thi ...
Other materials:
Troubleshooting
Any of the following fail to light: turn signal lights, brake light or
indicator lights.
The horn fails to sound.
The fuel gauge fails to operate.
The speedometer fails to operate.
NOTE:
Before troubleshooting, remove the following part(s):
1. Seats
2. Fuel tank
3. Left upper ...
Checking the throttle body joint and air filter case joint
1. Remove:
Right lower side cowling
Left lower side cowling
Refer to "GENERAL CHASSIS" on page 4-1.
2. Check:
Throttle body joint "1"
Air filter case joint "2"
Cracks/damage Replace.
3. Install:
Right lower side cowling
Left lower side cowling
Refer to "GENERAL CHAS ...
Removing the handlebars
1. Stand the vehicle on a level surface.
WARNINGSecurely support the vehicle so that there
is
no danger of it falling over.
2. Remove:
Handlebar grip "1"
NOTE:
Blow compressed air between the handlebar
and the handlebar grip, and gradually push the
grip off the handleb ...