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:
Checking the steering
Worn or loose steering bearings may
cause danger. Therefore, the operation
of the steering must be checked as follows
at the intervals specified in the periodic
maintenance and lubrication
chart.
Place a stand under the engine to
raise the front wheel off the
ground. WARNING! To ...
Fuel tank cap
Fuel tank cap
Fuel tank cap lock cover
Unlock.
To remove the fuel tank cap
Open the fuel tank cap lock cover.
Insert the key into the lock and turn
it 1/4 turn counterclockwise. The
lock will be released and the fuel
tank cap can be removed.
To install the fuel tank ca ...
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 specifi ...