Yamaha YZF-R125 Service Manual: Checking the coolant temperature sensor
1. Remove:
- Coolant temperature sensor
WARNING
|
2. Check:
- Coolant temperature sensor resistance
Out of specification →Replace.
a. Connect the pocket tester ( 
×
100) to the
coolant temperature sensor terminals as
shown.
- b. Immerse the coolant temperature sensor "1" in a container filled with coolant "2".
NOTE:
Make sure the coolant temperature sensor terminals do not get wet.
c. Place a thermometer "3" in the coolant.
d. Slowly heat the coolant, and then let it cool down to the specified temperature.
e. Check the coolant temperature sensor resistance.
3. Install:
- Coolant temperature sensor
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.
Posi ...
Checking the throttle body sensor assembly
WARNING
Do not remove the throttle body sensor assembly.
Handle the throttle body sensor assembly
with special care
Never subject the throttle body sensor assembly
to strong ...
Other materials:
Adjusting the engine idling speed
The engine idling speed must be
checked and, if necessary, adjusted as
follows at the intervals specified in the
periodic maintenance and lubrication
chart.
The engine should be warm before
making this adjustment.
Remove panel A.
Check the engine idling speed
and, if necessary, ...
Installing the camshaft and rocker arms
1. Lubricate:
Rocker arms
Rocker arm shafts
2. Lubricate:
Camshaft
3. Install:
Camshaft "1"
NOTE:
Make sure that the camshaft projections "a" and
hole "b" are positioned as shown in the illustration.
4. Install:
Rocker arms
Rocker arm shafts "1"
NOTE:
Make ...
Assembling the rear brake caliper
WARNING
Before installation, all internal brake components
should be cleaned and lubricated
with clean or new brake fluid.
Never use solvents on internal brake components
as they will cause the brake caliper
piston dust seal and piston seal to swell
and distort.
...