Yamaha YZF-R125 Service Manual: Checking the swingarm

Yamaha YZF-R125 Service Manual / Chassis / Swingarm / 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.

Checking the swingarm

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:

Cleaning the air filter element
NOTE: There is a check hose "1" at the bottom of the air filter case. If dust and/or water collects in this hose, clean the air filter element and air filter case. 1. Remove: Rider seat Refer to "GENERAL CHASSIS" on page 4-1. 2. Remove: Fuel tank Refer to "FUEL TANK" on page ...

Checking the piston pin
1. Check: Piston pin Blue discoloration/grooves Replace the piston pin and then check the lubrication system. 2. Measure: Piston pin outside diameter "a" Out of specification Replace the piston pin. 3. Measure: Piston pin bore diameter "b" Out of specifica ...

Self-diagnostic function table
If the ECU detects an abnormal signal from a sensor while the vehicle is being driven, the ECU illuminates the engine trouble warning light and provides the engine with alternate operating instructions that are appropriate for the type of malfunction. When an abnormal signal is received fro ...