Yamaha YZF-R125 Owners Manual
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- Introduction
- Important manual information
- Safety information
- Be a Responsible Owner
- Safe Riding
- Protective apparel
- Avoid Carbon Monoxide Poisoning
- Loading
- Genuine Yamaha Accessories
- Aftermarket Parts, Accessories, and Modifications
- Aftermarket Tires and Rims
- Description
- Instrument and control functions
- Main switch/steering lock
- Indicator and warning lights
- Tachometer
- Multi-function display
- Handlebar switches
- Clutch lever
- Shift pedal
- Brake lever
- Brake pedal
- Fuel tank cap
- Fuel
- Catalytic converters
- Rider seat
- Sidestand
- Ignition circuit cut-off system
- For your safety - pre-operation checks
- Operation and important riding points
- Periodic maintenance and adjustment
- 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
- Motorcycle care and storage
- Specifications
- Consumer information
Introduction
Welcome to the Yamaha world of motorcycling!
As the owner of the YZF-R125, you are benefiting from Yamaha's vast
experience and newest technology regarding the design
and manufacture of high-qual ...
Other materials:
Checking the piston rings
1. Measure:
Piston ring side clearance
Out of specification Replace the
piston
and piston rings as a set.
NOTE:
Before measuring the piston ring side clearance,
eliminate any carbon deposits from the piston
ring grooves and piston rings.
2. Install:
Piston ring
(into the cylind ...
Installing the camshaft and rocker arms
1. Lubricate:
Rocker arms
Rocker arm shafts
2. Lubricate:
Camshaft
3. Install:
Camshaft "1"
NOTE:
Make sure that the camshaft projections "a" and
hole "b" are positioned as shown in the illustration.
4. Install:
Rocker arms
Rocker arm shafts "1"
NOTE:
Make ...
Troubleshooting method
The engine operation is not normal and the
engine trouble warning light comes on.
1. Check:
Fault code number
a. Check the fault code number displayed on
the FI diagnostic tool.
b. Identify the faulty system with the fault code.
Refer to "Self-Diagnostic Function table".
c. Identi ...