Yamaha YZF-R125 Service Manual: Installing the drive chain
1. Lubricate:
- Drive chain
- Master link
2. Install:
- Drive sprocket
- Drive sprocket retainer bolts
3. Install:
- Master link
- O-rings
- Master link plate
- Master link clip "1"
CAUTION:
|
NOTE:
Install the master link plate with its manufacturer mark facing outward.
4. Install:
- Drive sprocket cover
NOTE:
Be sure not to pinch the neutral switch lead when installing the drive sprocket cover.
5. Install:
- Rear wheel Refer to "REAR WHEEL" on page 4-12.
6. Adjust:
- Drive chain slack
Refer to "ADJUSTING THE DRIVE CHAIN
SLACK" on page 3-21.
| CAUTION: A drive chain that is too tight will overload the engine and other vital parts, and one that is too loose can skip and damage the swingarm or cause an accident. Therefore, keep the drive chain slack within the specified limits. |
Checking the drive sprocket
1. Check:
Drive sprocket
More than 1/4 tooth "a" wear
Replace the
drive chain sprockets as a set.
Bent teeth Replace the drive
chain sprockets
as a set.
b. Correct
1. Dri ...
Engine
...
Other materials:
Checking the horn
1. Check:
Horn resistance
Out of specification Replace.
a. Disconnect the horn connectors from the
horn terminals.
b. Connect the pocket tester ( × 1) to the horn
terminals.
Positive tester probe
horn terminal "1"
Negative tester probe
horn terminal "2"
c. Measure t ...
Types of bulbs
The bulbs used on this vehicle are shown in the
illustration.
Bulbs "a" and "b" are used for the headlights
and usually use a bulb holder that must be detached
before removing the bulb. The majority
of these types of bulbs can be removed from
their respective socket by turning them coun ...
Intake air pressure sensor
1. Check:
Intake air pressure sensor output voltage
Out of specification Replace the throttle
body.
a. Connect the pocket tester (DC 20 V) to the
throttle body sensor assembly coupler as
shown.
Positive tester probe
pink/white "1"
Negative tester probe
gray/black "2"
...