Yamaha YZF-R125 Service Manual: Cleaning the air filter element
NOTE:
There is a check hose "1" at the bottom of the air filter case. If dust and/or water collects in this hose, clean the air filter element and air filter case.
1. Remove:
- Rider seat Refer to "GENERAL CHASSIS" on page 4-1.
2. Remove:
- Fuel tank Refer to "FUEL TANK" on page 7-1.
3. Remove:
- Air filter case cover "1"
- Air filter element
4. Clean:
- Air filter element "1" Apply compressed air to the outer surface of the air filter element.
5. Check:
- Air filter element
Damage
Replace.
6. Install:
- Air filter element
- Air filter case cover (along with the gaskets)
| CAUTION: Never operate the engine without the air filter element installed. Unfiltered air will cause rapid wear of engine parts and may damage the engine. Operating the engine without the air filter element will also affect throttle body tuning, leading to poor engine performance and possible overheating. |
NOTE:
Make sure the air filter element is properly installed in the air filter case.
7. Install:
- Fuel tank Refer to "FUEL TANK" on page 7-1.
- Rider seat Refer to "GENERAL CHASSIS" on page 4-1.
Adjusting the clutch cable free play
1. Check:
Clutch cable free play "a"
Out of specification Adjust.
2. Adjust:
Clutch cable free play
a. Pull back the rubber cover "1"
b. Loosen the locknut "2".
c. Turn the adjust ...
Checking the throttle body joint and air filter case joint
1. Remove:
Right lower side cowling
Left lower side cowling
Refer to "GENERAL CHASSIS" on page 4-1.
2. Check:
Throttle body joint "1"
Air filter case joint "2"
Cracks/damage Replace ...
Other materials:
Installing the front brake master cylinder
1. Install:
Brake master cylinder "1"
Brake master cylinder holder "2"
NOTE:
Install the brake master cylinder holder with the
arrow mark "a" pointing forward.
Align the end of the brake master cylinder holder
with the punch mark "b" on the handlebar.
First, tighten the front bo ...
Checking the relays
Check each switch for continuity with the pocket
tester. If the continuity reading is incorrect, replace
the relay.
1. Disconnect the relay from the wire harness.
2. Connect the pocket tester ( × 1) and battery
(12 V) to the relay terminal as shown.
Check the relay operation.
Out ...
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:
...