Yamaha YZF-R125 Owners Manual: Periodic maintenance and adjustment
Periodic inspection, adjustment, and lubrication will keep your vehicle in the safest and most efficient condition possible. Safety is an obligation of the vehicle owner/operator. The most important points of vehicle inspection, adjustment, and lubrication are explained on the following pages.
The intervals given in the periodic maintenance and lubrication chart should be simply considered as a general guide under normal riding conditions. However, depending on the weather, terrain, geographical location, and individual use, the maintenance intervals may need to be shortened.
WARNING
Failure to properly maintain the vehicle
or performing maintenance activities
incorrectly may increase
your risk of injury or death during
service or while using the vehicle. If
you are not familiar with vehicle service,
have a Yamaha dealer perform
service.
WARNING
Turn off the engine when performing
maintenance unless otherwise
specified.
- A running engine has moving parts that can catch on body parts or clothing and electrical parts that can cause shocks or fires.
- Running the engine while servicing can lead to eye injury, burns, fire, or carbon monoxide poisoning - possibly leading to death. See page 1-1 for more information about carbon monoxide.
- Owner's tool kit
- Periodic maintenance chart for the emission control system
- General maintenance and lubrication chart
- Removing and installing the cowlings and panel
- Checking the spark plug
- Engine oil and oil filter element
- Coolant
- Replacing the air filter element and cleaning the check hose
- Adjusting the engine idling speed
- Adjusting the throttle cable free play
- Valve clearance
- Tires
- Cast wheels
- Adjusting the clutch lever free play
- Checking the front brake lever free play
- Adjusting the brake pedal free play
- Checking the front and rear brake pads
- Checking the brake fluid level
- Changing the brake fluid
- Drive chain slack
- Cleaning and lubricating the drive chain
- Checking and lubricating the cables
- Checking and lubricating the throttle grip and cable
- Checking and lubricating the brake and shift pedals
- Checking and lubricating the brake and clutch levers
- Checking and lubricating the sidestand
- Lubricating the swingarm pivots
- Checking the front fork
- Checking the steering
- Checking the wheel bearings
- Battery
- Replacing the fuses
- Replacing a headlight bulb
- Tail/brake light
- Replacing a turn signal light bulb
- Replacing the license plate light bulb
- Replacing an auxiliary light bulb
- Supporting the motorcycle
- Front wheel
- Rear wheel
- Troubleshooting
- Troubleshooting charts
Parking
When parking, stop the engine, and
then remove the key from the main
switch.
WARNING
Since the engine and exhaust
system can become very hot,
park in a place where pedestrians
or ch ...
Owner's tool kit
Owner's tool kit
Owner's tool kit
Engine oil drain attachment
The owner's tool kit is located under the
rider seat.
The service information included in this
manual and the tools prov ...
Other materials:
Checking the timing chain tensioner
1. Check:
Timing chain tensioner
Cracks/damage/rough movement Replace.
a. Lightly press the timing chain tensioner rod
into the timing chain tensioner housing by
hand.
NOTE:
While pressing the timing chain tensioner rod,
wind it clockwise with a thin screwdriver "1" until
it stops.
b. ...
Lubricating the drive chain
The drive chain consists of many interacting
parts. If the drive chain is not maintained properly,
it will wear out quickly. Therefore, the drive
chain should be serviced, especially when the
vehicle is used in dusty areas.
This vehicle has a drive chain with small rubber
O-rings between eac ...
Front wheel
To remove the front wheel
WARNING
To avoid injury, securely support the
vehicle so there is no danger of it
falling over.
Loosen the front wheel axle pinch
bolt, then the wheel axle and the
brake caliper bolts.
Front wheel axle pinch bolt
Lift the front wheel of ...