Yamaha YZF-R125 Service Manual: Checking the coolant level
1. Stand the vehicle on a level surface.
NOTE:
- Place the vehicle on a suitable stand.
- Make sure the vehicle is upright.
2. Check:
Coolant level The coolant level should be between the maximum level mark "a" and minimum level mark "b".
Below the minimum level mark → Add the recommended coolant to the proper level.
NOTE:
To access the coolant reservoir cap "1", remove the right side cover. Refer to "GENERAL CHASSIS" on page 4-1.
CAUTION:
|
3. Start the engine, warm it up for several minutes, and then turn it off.
4. Check:
- Coolant level
NOTE:
Before checking the coolant level, wait a few minutes until it settles.
Checking the exhaust system
1. Check:
Exhaust assembly "1"
Cracks/damage → Replace.
Exhaust pipe gasket "2"
Exhaust gas leaks → Replace.
2. Check:
Tightening torques of the exhaust pipe nuts
"3" an ...
Checking the cooling system
1. Remove:
Side covers
Upper side cowlings
Refer to "GENERAL CHASSIS" on page 4-1.
2. Check:
Radiator "1"
Radiator inlet hose "2"
Radiator outlet hose "3"
Coolant reservoir hose ...
Other materials:
Checking the front brake caliper
1. Check:
Brake caliper pistons "1"
Rust/scratches/wear Replace the
brake
caliper assembly.
Brake caliper body "2"
Cracks/damage Replace the brake
caliper
assembly.
Brake fluid delivery passages
(brake caliper body)
Obstruction Blow out with
compressed air.
...
Checking the coolant temperature sensor
1. Remove:
Coolant temperature sensor
WARNING
Handle the coolant temperature sensor
with special care.
Never subject the coolant temperature sensor
to strong shocks. If the coolant temperature
sensor is dropped, replace it.
2. Check:
Coolant temper ...
Checking the piston rings
1. Measure:
Piston ring side clearance
Out of specification Replace the
piston
and piston rings as a set.
NOTE:
Before measuring the piston ring side clearance,
eliminate any carbon deposits from the piston
ring grooves and piston rings.
2. Install:
Piston ring
(into the cylind ...