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:
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 ...
Adjusting the throttle cable free play
Throttle cable free play
The throttle cable free play should measure
3.0-5.0 mm (0.12-0.20 in) at the
throttle grip. Periodically check the
throttle cable free play and, if necessary,
adjust it as follows.
TIP
The engine idling speed must be correctly
adjusted before checkin ...
Protective apparel
The majority of fatalities from motorcycle
accidents are the result of head injuries.
The use of a safety helmet is the
single most critical factor in the prevention
or reduction of head injuries.
Always wear an approved helmet.
Wear a face shield or goggles.
Wind in your unprotecte ...