Yamaha YZF-R125 Service Manual
- General information
- Specifications
- Engine specifications
- Chassis specifications
- Electrical specifications
- Tightening torques
- Lubrication points and lubricant types
- Lubrication system chart and diagrams
- Cooling system diagrams
- Cable routing
- Periodic checks and adjustments
- Chassis
- General chassis
- Front wheel
- Rear wheel
- Front brake
- Rear brake
- Handlebars
- Front fork
- Steering head
- Rear shock absorber assembly
- Swingarm
- Chain drive
- Engine
- Engine removal
- Cylinder head
- Camshaft
- Valves and valve springs
- Cylinder and piston
- Generator and starter clutch
- Electric starter
- Clutch
- Oil pump
- Shift shaft
- Balancer gear
- Crankcase
- Crankshaft
- Transmission
- Cooling system
- Fuel system
- Electrical system
- Ignition system
- Electric starting system
- Charging system
- Lighting system
- Signaling system
- Cooling system
- Fuel injection system
- Fuel pump system
- Electrical components
- Troubleshooting
Identification numbers
Record the key identification number,
vehicle identification number and model
label information in the spaces provided
below for assistance when
ordering spare parts from a Yamaha
dealer or ...
General information
NOTICEThis manual was produced by MBK Industrie.
primarily for use by Yamaha dealers and their qualified
mechanics. It is not possible to include all the knowledge of a mechanic
in o ...
Other materials:
Checking the clutch springs
The following procedure applies to all of the
clutch springs.
1. Check:
Clutch spring
Damage Replace the clutch
springs as a
set.
2. Measure:
Clutch spring free length "a"
Out of specification Replace
the clutch
springs as a set.
...
Checking the shift drum assembly
1. Check:
Shift drum groove
Damage/scratches/wear Replace
the shift
drum assembly.
Shift drum segment "1"
Damage/wear Replace the
shift drum assembly.
Shift drum bearing "2"
Damage/pitting Replace the
shift drum assembly.
...
Air induction system
1. Air induction system hose (air filter case to
reed valve assembly)
2. Air induction system reed valve assembly
3. Air induction system hose (reed valve
assembly to exhaust pipe)
Checking the air induction system
Air injection
The air induction system burns unburned exhaust
gases b ...