Yamaha YZF-R125 Service Manual: Assembling the front wheel
1. Install:
- Wheel bearings
- Oil seal
a. Install the new wheel bearings and oil seal in the reverse order of disassembly.
| CAUTION: Do not contact the wheel bearing inner race "1" or balls "2". Contact should be made only with the outer race "3". |
NOTE:
Use a socket "4" that matches the diameter of the wheel bearing outer race and oil seal.
Checking the front wheel
1. Check:
Front wheel axle
Roll the wheel axle on a flat surface.
Bends → Replace.
WARNINGDo not attempt to straighten a bent wheel
axle.
2. Check:
Tire
Front wh ...
Adjusting the front wheel static balance
NOTE:
After replacing the tire, wheel or both, the front
wheel static balance should be adjusted.
Adjust the front wheel static balance with the
brake discs installed.
1. Remove:
Bala ...
Other materials:
Installing the rear brake master cylinder
1. Install:
Copper washers "1"
Brake hose "2"
Rear brake light switch "3"
WARNINGProper brake hose routing is essential to
insure
safe vehicle operation. Refer to "CABLE
ROUTING" on page 2-33.
CAUTION:When installing the brake hose onto the
brake master ...
Installing the valves
The following procedure applies to all of the
valves and related components.
1. Deburr:
Valve stem end
(with an oil stone)
2. Lubricate:
Valve stem "1"
Valve stem seal "2"
(with the recommended lubricant)
3. Install:
Lower spring seat "1"
Valve stem seal "2"
V ...
Installing the piston and cylinder
1. Install:
Top ring "1"
2nd ring "2"
Oil ring expander "3"
Lower oil ring rail "4"
Upper oil ring rail "5"
NOTE:
Be sure to install the piston rings so that the
manufacturer marks or numbers face up.
2. Install:
Piston "1"
Piston pin "2"
Piston pin clips "3"
NOTE:
...