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:
Troubleshooting details
This section describes the measures per fault code number displayed on the FI
diagnostic tool. Check
and service the items or components that are the probable cause of the
malfunction following the order
given.
After the check and service of the malfunctioning part have been completed,
re ...
Care
While the open design of a motorcycle
reveals the attractiveness of the technology,
it also makes it more vulnerable.
Rust and corrosion can develop
even if high-quality components are
used. A rusty exhaust pipe may go unnoticed
on a car, however, it detracts
from the overall appearanc ...
Checking the rear brake caliper
1. Check:
Brake caliper piston "1"
Rust/scratches/wear Replace the
brake
caliper piston.
Brake caliper cylinder "2"
Scratches/wear Replace the
brake caliper
assembly.
Brake caliper body "3"
Cracks/damage Replace the
brake caliper
assembly.
Brake fluid deli ...