Yamaha YZF-R125 Service Manual: 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 "4"
Water pump breather hose "5" Cracks/damage → Replace.
Refer to "RADIATOR" on page 6-1.
3. Install:
- Upper side cowlings
- Side covers Refer to "GENERAL CHASSIS" on page 4-1.
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
max ...
Changing the coolant
1. Remove:
Lower side cowlings
Refer to "GENERAL CHASSIS" on page 4-1.
2. Remove:
Radiator cap "1"
WARNINGA hot radiator is under pressure.
Therefore,
do not remove t ...
Other materials:
Troubleshooting
The ignition system fails to operate (no spark or intermittent spark).
NOTE:
Before troubleshooting, remove the following part(s):
1. Seats
2. Fuel tank
3. Right side cover
4. Left side panel
5. Left upper side cowling
...
Checking the fuses
The following procedure applies to all of the fuses.
CAUTION:To avoid a short circuit, always turn the
main
switch to "OFF" when checking or replacing
a fuse.
1. Remove:
Rider seat
Refer to "GENERAL CHASSIS" on page 4-1.
2. Check:
Fuse
a. Connect the pocket te ...
Drive chain slack
The drive chain slack should be
checked before each ride and adjusted
if necessary.
To check the drive chain slack
Place the motorcycle on the sidestand.
TIP
When checking and adjusting the drive
chain slack, there should be no weight
on the motorcycle.
Shift the transmission in ...