Yamaha YZF-R125 Service Manual: Adjusting the exhaust gas volume
NOTE:
Be sure to set the CO density level to standard, and then adjust the exhaust gas volume.
1. Remove:
- Rider seat Refer to "GENERAL CHASSIS" on page 4-1.
2. Set the main switch to "OFF".
3. Disconnect:
- Self-diagnosis signal connector "1"
4. Connect:
- FI diagnostic tool "2"
5. While pressing the "MODE" button "1", turn the main switch to "ON".
NOTE:
- "DIAG" appears on the LCD "2" of the FI diagnostic tool.
- "POWER" LED (Green) "3" comes on.
6. Press the "UP" button "4" to select the CO adjustment mode "CO" or the diagnostic mode "DIAG".
7. After selecting "CO", press the "MODE" button.
8. Check that "C1" appears on the LCD of the FI diagnostic tool, and then press the "MODE" button.
9. Start the engine.
| CAUTION: Perform the adjustment after the battery has been sufficiently charged. |
10.Change the CO adjustment volume by pressing the "UP" and "DOWN" buttons.
NOTE:
The CO adjustment volume and engine idling speed appears on the LCD of the FI diagnostic tool.
- To decrease the CO adjustment volume, press the "DOWN" button.
- To increase the CO adjustment volume, press the "UP" button.
11.Release the "DOWN" and "UP" buttons to execute the selection.
12.Set the main switch to "OFF" to cancel the mode.
13.Disconnect:
- FI diagnostic tool
14.Connect:
- Self-diagnosis signal connector
15.Install:
- Rider seat Refer to "GENERAL CHASSIS" on page 4-1.
Adjusting the valve clearance
The following procedure applies to all of the
valves.
NOTE:
Valve clearance adjustment should be made
on a cold engine, at room temperature.
When the valve clearance is to be measured or
a ...
Adjusting the engine idling speed
NOTE:
Prior to adjusting the engine idling speed, the air
filter element should be clean, and the engine
should have adequate compression.
1. Start the engine and let it warm up for several
minut ...
Other materials:
Safe Riding
Perform the pre-operation checks each
time you use the vehicle to make sure it
is in safe operating condition. Failure to
inspect or maintain the vehicle properly
increases the possibility of an accident
or equipment damage. See page 4-1
for a list of pre-operation checks.
This motor ...
Checking the switches
1. Clutch switch
2. Main switch
3. Front brake light switch
4. Sidestand switch
5. Rear brake light switch
6. Neutral switch
7. Turn signal switch
8. Horn switch
9. Dimmer switch
10.Pass switch
11.Engine stop switch
12.Start switch
Check each switch for continuity with the pocket tes ...
Faulty front fork legs
Leaking oil
- Bent, damaged or rusty inner tube
- Cracked or damaged outer tube
- Improperly installed oil seal
- Damaged oil seal lip
- Incorrect oil level (high)
- Loose damper rod assembly bolt
- Damaged damper rod assembly bolt copper
washer
- Cracked or damaged front fork cap O-ring
M ...