Yamaha YZF-R125 Service Manual: Checking the swingarm
1. Check:
- Swingarm
Bends/cracks/damage
Replace.
2. Check:
- Pivot shaft
Roll the pivot shaft on a flat surface.
Bends
Replace.
| WARNING Do not attempt to straighten a bent pivot shaft. |
3. Wash:
- Pivot shaft
- Washer
- Swingarm adjusting collar
- Dust covers
- Spacers
- Bearings
4. Check:
- Washer
- Swingarm adjusting collar
- Dust covers
- Spacers
Oil seals
Damage/wear 
Replace.
- Bearings
Damage/pitting Replace.
Removing the swingarm
1. Stand the vehicle on a level surface.
WARNINGSecurely support the vehicle
so that there is
no danger of it falling over.
NOTE:
Place the vehicle on a suitable stand so that th ...
Installing the swingarm
1. Lubricate:
Bearings
Spacers
Dust covers
Pivot shaft
2. Install:
Bearings "1"
2. Swingarm
A. Left side
B. Right side
3. Install:
Swingarm adjusting collar "1"
Swin ...
Other materials:
For your safety - pre-operation checks
Inspect your vehicle each time you use it to make sure the vehicle is in safe
operating condition. Always follow the inspection
and maintenance procedures and schedules described in the Owner's Manual.
WARNING
Failure to inspect or maintain the vehicle properly increases the possibility of
...
Installing the valves
The following procedure applies to all of the
valves and related components.
1. Deburr:
Valve stem end
(with an oil stone)
2. Lubricate:
Valve stem "1"
Valve stem seal "2"
(with the recommended lubricant)
3. Install:
Lower spring seat "1"
Valve stem seal "2"
V ...
Installing the radiator
1. Fill:
Cooling system
(with the specified amount of the recommended
coolant)
Refer to "CHANGING THE COOLANT" on
page 3-15.
2. Check:
Cooling system
Leaks Repair or replace any
faulty part.
3. Measure:
Radiator cap opening pressure
Below the specified pressure Repla ...