Yamaha YZF-R125 Service Manual: Periodic checks and adjustments
- Periodic maintenance
- Engine
- Adjusting the valve clearance
- Adjusting the exhaust gas volume
- Adjusting the engine idling speed
- Adjusting the throttle cable free play
- Checking the spark plug
- Checking the ignition timing
- Measuring the compression pressure
- Checking the engine oil level
- Changing the engine oil
- Adjusting the clutch cable free play
- Cleaning the air filter element
- Checking the throttle body joint and air filter case joint
- Checking the fuel line
- Checking the cylinder head breather hose
- Checking the exhaust system
- Checking the coolant level
- Checking the cooling system
- Changing the coolant
- Chassis
- Adjusting the rear disc brake
- Checking the brake fluid level
- Checking the front brake pads
- Checking the rear brake pads
- Checking the front brake hose
- Checking the rear brake hose
- Bleeding the hydraulic brake system
- Adjusting the drive chain slack
- Lubricating the drive chain
- Checking and adjusting the steering head
- Checking the front fork
- Checking the tires
- Checking the wheels
- Checking and lubricating the cables
- Electrical system
Cable routing
Front brake light switch lead
Right handlebar switch lead
Throttle cable
Main switch
Clutch cable
Clutch switch lead
Left handlebar switch lead
Sub-wire harness
Horn
Speed sen ...
Other materials:
Removing and installing the cowlings and panel
Removing and installing the cowlings and panel
Cowling A
Cowling B
Cowling C
Cowling D
Panel A
The cowlings and panel shown need to
be removed to perform some of the
maintenance jobs described in this
chapter. Refer to this section each time
a cowling or panel needs to be ...
Rear wheel
To remove the rear wheel
WARNING
To avoid injury, securely support the
vehicle so there is no danger of it
falling over.
Loosen the axle nut.
Axle nut
Drive chain slack adjusting bolt
Locknut
Brake caliper
Lift the rear wheel off the ground
according to the pr ...
Checking the steering head
1. Wash:
Bearings
Bearing races
2. Check:
Bearings
Bearing races
Damage/pitting →Replace.
3. Replace:
Bearings
Bearing races
a. Remove the bearing races from the steering
head pipe with a long rod "1" and hammer.
b. Remove the bearing race from the lower
bracket ...